ci(action): update actions/checkout action to v6 (#543)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/codeql.yml

@@ -15,7 +15,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         # We must fetch at least the immediate parents so that if this is
         # a pull request then we can checkout the head.

.github/workflows/release.yml

@@ -18,7 +18,7 @@ jobs:
     name: release
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-node@v6
         with:
           node-version: lts/*

.github/workflows/test.yml

@@ -17,7 +17,7 @@ jobs:
           - 22
           - 24
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Use Node.js ${{ matrix.node_version }}
         uses: actions/setup-node@v6
         with:
@@ -33,7 +33,7 @@ jobs:
     steps:
       - run: exit 1
         if: ${{ needs.test_matrix.result != 'success' }}
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - run: npm ci
       - run: npm run lint
     if: ${{ always() }}

.github/workflows/update-prettier.yml

@@ -12,7 +12,7 @@ jobs:
         with:
           app-id: ${{ vars.OCTOKIT_APP_ID }}
           private-key: ${{ secrets.OCTOKIT_APP_PRIVATE_KEY }}
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-node@v6
         with:
           cache: npm