ci: revert deprecated useblacksmith forks and extend Blacksmith coverage

The useblacksmith/cache, useblacksmith/setup-node, useblacksmith/setup-go
forks are now archived. Blacksmith's colocated cache is applied at the
runner level (network/DNS interception of cache API calls), so upstream
actions/cache@v5, actions/setup-node@v6 and actions/setup-go@v6 hit the
same 4x backend transparently — with continued security patches and
upstream improvements.

Revert prior swaps (PR1 19c4534, PR5 9b05731/3dad0ae) to SHA-pinned
upstream actions, bump test.yml's residual actions/cache@v4 to v5, and
migrate previously-skipped low-frequency Linux jobs (api-sync, mirror,
codeql, release publish/homebrew/scoop) to Blacksmith runners for
consistency.

useblacksmith/checkout is unchanged — it's a separate sticky-disk
product, not part of the deprecated cache-fork family.

Author: claude

.github/actions/setup/action.yml

@@ -11,7 +11,7 @@ runs:
 
     - name: Restore Bun toolchain cache
       id: bun-toolchain-cache
-      uses: useblacksmith/cache@71c7c918062ba3861252d84b07fe5ab2a6b467a6 # v5
+      uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5
       with:
         path: /opt/hostedtoolcache/bun
         key: bun-toolchain-${{ runner.os }}-${{ runner.arch }}-${{ env.BUN_VERSION }}
@@ -39,7 +39,7 @@ runs:
       run: bun --version
 
     - name: Install Node.js
-      uses: useblacksmith/setup-node@65c6ca86fdeb0ab3d85e78f57e4f6a7e4780b391 # v5
+      uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6
       with:
           node-version-file: .nvmrc
           package-manager-cache: false
@@ -49,7 +49,7 @@ runs:
       run: npm install --global --force corepack && corepack enable
 
     - name: Configure dependency cache
-      uses: useblacksmith/setup-node@65c6ca86fdeb0ab3d85e78f57e4f6a7e4780b391 # v5
+      uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6
       with:
         cache: pnpm
 

.github/workflows/cli-go-api-sync.yml

@@ -12,7 +12,7 @@ permissions:
 jobs:
   sync:
     name: Sync API Types
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-2vcpu-ubuntu-2404
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 

.github/workflows/cli-go-ci.yml

@@ -23,7 +23,7 @@ jobs:
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
-      - uses: useblacksmith/setup-go@f12a3dabb4171193018e496855e47349b360c056 # v5
+      - uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6
         with:
           go-version-file: apps/cli-go/go.mod
           cache: true
@@ -60,7 +60,7 @@ jobs:
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
-      - uses: useblacksmith/setup-go@f12a3dabb4171193018e496855e47349b360c056 # v5
+      - uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6
         with:
           go-version-file: apps/cli-go/go.mod
           # Linter requires no cache
@@ -78,7 +78,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-      - uses: useblacksmith/setup-go@f12a3dabb4171193018e496855e47349b360c056 # v5
+      - uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6
         with:
           go-version-file: apps/cli-go/go.mod
           cache: true
@@ -102,7 +102,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-      - uses: useblacksmith/setup-go@f12a3dabb4171193018e496855e47349b360c056 # v5
+      - uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6
         with:
           go-version-file: apps/cli-go/go.mod
           cache: true
@@ -118,7 +118,7 @@ jobs:
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
-      - uses: useblacksmith/setup-go@f12a3dabb4171193018e496855e47349b360c056 # v5
+      - uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6
         with:
           go-version-file: apps/cli-go/go.mod
           cache: true

.github/workflows/cli-go-codeql.yml

@@ -32,7 +32,7 @@ jobs:
     #   - https://gh.io/supported-runners-and-hardware-resources
     #   - https://gh.io/using-larger-runners (GitHub.com only)
     # Consider using larger runners or machines with greater resources for possible analysis time improvements.
-    runs-on: ${{ (matrix.language == 'swift' && 'macos-latest') || 'ubuntu-latest' }}
+    runs-on: ${{ (matrix.language == 'swift' && 'macos-latest') || 'blacksmith-8vcpu-ubuntu-2404' }}
     timeout-minutes: ${{ (matrix.language == 'swift' && 120) || 360 }}
     permissions:
       # required for all workflows

.github/workflows/cli-go-mirror.yml

@@ -22,7 +22,7 @@ permissions:
 
 jobs:
   setup:
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-2vcpu-ubuntu-2404
     outputs:
       tags: ${{ steps.list.outputs.tags }}
       curr: ${{ steps.curr.outputs.tags }}

.github/workflows/release-shared.yml

@@ -57,7 +57,7 @@ jobs:
         uses: ./.github/actions/setup
 
       - name: Setup Go
-        uses: useblacksmith/setup-go@f12a3dabb4171193018e496855e47349b360c056 # v5
+        uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6
         with:
           go-version-file: apps/cli-go/go.mod
           cache: true
@@ -149,7 +149,7 @@ jobs:
   publish:
     needs: smoke-test
     if: ${{ !inputs.dry_run }}
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-2vcpu-ubuntu-2404
     env:
       CHANNEL: ${{ inputs.channel }}
       NPM_TAG: ${{ inputs.npm_tag }}
@@ -271,7 +271,7 @@ jobs:
   publish-homebrew:
     needs: publish
     if: ${{ !inputs.dry_run && inputs.publish_brew_scoop }}
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-2vcpu-ubuntu-2404
     env:
       BREW_NAME: ${{ inputs.brew_name }}
       VERSION: ${{ inputs.version }}
@@ -313,7 +313,7 @@ jobs:
   publish-scoop:
     needs: publish
     if: ${{ !inputs.dry_run && inputs.publish_brew_scoop }}
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-2vcpu-ubuntu-2404
     env:
       SCOOP_NAME: ${{ inputs.scoop_name }}
       VERSION: ${{ inputs.version }}

.github/workflows/test.yml

@@ -33,7 +33,7 @@ jobs:
       - name: Setup
         uses: ./.github/actions/setup
       - name: Setup Go
-        uses: useblacksmith/setup-go@f12a3dabb4171193018e496855e47349b360c056 # v5
+        uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6
         with:
           go-version-file: apps/cli-go/go.mod
           cache-dependency-path: apps/cli-go/go.sum
@@ -57,7 +57,7 @@ jobs:
       - name: Setup
         uses: ./.github/actions/setup
       - name: Setup Go
-        uses: useblacksmith/setup-go@f12a3dabb4171193018e496855e47349b360c056 # v5
+        uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6
         with:
           go-version-file: apps/cli-go/go.mod
           cache-dependency-path: apps/cli-go/go.sum
@@ -114,7 +114,7 @@ jobs:
       - name: Cache Go CLI binary
         if: steps.detect.outputs.cli_e2e == 'true'
         id: cache-go-binary
-        uses: actions/cache@v4
+        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5
         with:
           path: apps/cli-go/supabase-go
           key: go-cli-${{ runner.os }}-${{ hashFiles('apps/cli-go/**/*.go',
@@ -123,7 +123,7 @@ jobs:
       - name: Setup Go
         if: steps.detect.outputs.cli_e2e == 'true' &&
           steps.cache-go-binary.outputs.cache-hit != 'true'
-        uses: useblacksmith/setup-go@f12a3dabb4171193018e496855e47349b360c056 # v5
+        uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6
         with:
           go-version-file: apps/cli-go/go.mod
           cache-dependency-path: apps/cli-go/go.sum