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

Author: renovate[bot]

.github/workflows/codeql-analysis.yml

@@ -38,7 +38,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL

.github/workflows/release.yml

@@ -15,7 +15,7 @@ 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

@@ -18,7 +18,7 @@ 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:
@@ -32,7 +32,7 @@ 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
       - run: npm run build

.github/workflows/update-prettier.yml

@@ -7,7 +7,7 @@ jobs:
   update_prettier:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-node@v6
         with:
           cache: npm