ci: pin GitHub Action version

Author: henryde

.github/workflows/build.yml

@@ -18,9 +18,9 @@ jobs:
       matrix:
         node-version: [22.x]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
       - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@3235b876344d2a9aa001b8d1453c930bba69e610 # v3
         with:
           node-version: ${{ matrix.node-version }}
           cache: yarn

.github/workflows/copilot-setup-steps.yml

@@ -20,10 +20,10 @@ jobs:
     # If you do not check out your code, Copilot will do this for you.
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
 
       - name: Set up Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4
         with:
           node-version: "18.x"
           cache: "yarn"

.github/workflows/release.yml

@@ -15,7 +15,7 @@ jobs:
   release:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
         with:
           ref: develop
           fetch-depth: 0

.github/workflows/stale.yml

@@ -12,7 +12,7 @@ jobs:
   stale:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/stale@v8
+      - uses: actions/stale@1160a2240286f5da8ec72b1c0816ce2481aabf84 # v8
         with:
           days-before-stale: 7
           days-before-close: -1

.github/workflows/sync.yml

@@ -19,7 +19,7 @@ jobs:
 
     steps:
       - name: Checkout current repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
         with:
           fetch-depth: 0
           token: ${{ secrets.GITHUB_TOKEN }}