chore(ci): move to blacksmith runners (#1613)

Author: nimarb

.github/workflows/ci.yml

@@ -16,7 +16,7 @@ concurrency:
 
 jobs:
   linting:
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-2vcpu-ubuntu-2404
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
       - name: Install uv and set Python version
@@ -31,7 +31,7 @@ jobs:
         run: uv run --frozen ruff check .
 
   type-checking:
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-2vcpu-ubuntu-2404
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
       - name: Install uv and set Python version
@@ -53,7 +53,7 @@ jobs:
         run: uv run --frozen mypy langfuse --no-error-summary
 
   ci:
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     timeout-minutes: 30
     env:
       LANGFUSE_BASE_URL: "http://localhost:3000"
@@ -115,7 +115,7 @@ jobs:
 
           echo "::group::Seed db"
           cp .env.dev.example .env
-          pnpm run db:migrate          
+          pnpm run db:migrate
           pnpm run db:seed
           echo "::endgroup::"
           rm -rf .env
@@ -174,7 +174,7 @@ jobs:
 
   all-tests-passed:
     # This allows us to have a branch protection rule for tests and deploys with matrix
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-2vcpu-ubuntu-2404
     needs: [ci, linting, type-checking]
     if: always()
     steps: