fix(security): pin remaining 3rd party GitHub Actions to commit hashes (#23)

Pin actions/checkout, actions/setup-node, and the remaining
pnpm/action-setup uses to full commit SHAs to mitigate supply chain
risk from compromised tags.

Co-authored-by: Claude <noreply@anthropic.com>

Author: yosriady

.github/workflows/ci.yml

@@ -17,13 +17,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Setup pnpm
         uses: pnpm/action-setup@903f9c1a6ebcba6cf41d87230be49611ac97822e # v6.0.3
 
       - name: Setup Node
-        uses: actions/setup-node@v6
+        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
         with:
           node-version: "22.14.0"
           cache: 'pnpm'
@@ -44,13 +44,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Setup pnpm
-        uses: pnpm/action-setup@v6.0.3
+        uses: pnpm/action-setup@903f9c1a6ebcba6cf41d87230be49611ac97822e # v6.0.3
 
       - name: Setup Node
-        uses: actions/setup-node@v6
+        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
         with:
           node-version: "22.14.0"
           cache: 'pnpm'
@@ -65,13 +65,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Setup pnpm
-        uses: pnpm/action-setup@v6.0.3
+        uses: pnpm/action-setup@903f9c1a6ebcba6cf41d87230be49611ac97822e # v6.0.3
 
       - name: Setup Node
-        uses: actions/setup-node@v6
+        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
         with:
           node-version: "22.14.0"
           cache: 'pnpm'

.github/workflows/release.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           fetch-depth: 0  # Fetch all history for changelog generation
 
@@ -34,7 +34,7 @@ jobs:
         uses: pnpm/action-setup@903f9c1a6ebcba6cf41d87230be49611ac97822e # v6.0.3
 
       - name: Setup Node
-        uses: actions/setup-node@v6
+        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
         with:
           node-version: "22.14.0"
           cache: 'pnpm'