fix(ci): upgrade actions/checkout to v5 for Node.js 24

- Eliminates Node.js 20 deprecation warnings permanently
- actions/checkout@v5 runs on Node.js 24 natively

Sources:
- https://github.com/actions/checkout/releases
- https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: 黄飞虹

.github/workflows/codeql.yml

@@ -53,7 +53,7 @@ jobs:
         # Only GitHub Actions workflows are scanned for security issues
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     # Add any setup steps before running the `github/codeql-action/init` action.
     # This includes steps like installing compilers or runtimes (`actions/setup-node`

.github/workflows/deploy-docs.yml

@@ -26,7 +26,7 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Deploy
         uses: peaceiris/actions-gh-pages@v4

.github/workflows/docker-publish.yml

@@ -46,7 +46,7 @@ jobs:
       should_publish: ${{ steps.check.outputs.should_publish }}
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Check upstream version
         id: check
@@ -124,7 +124,7 @@ jobs:
       packages: write
       contents: read
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v4
       - name: Login to GHCR
@@ -156,7 +156,7 @@ jobs:
       packages: write
       contents: read
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v4
       - name: Login to GHCR
@@ -199,7 +199,7 @@ jobs:
       packages: write
       contents: read
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v4
       - name: Login to GHCR
@@ -234,7 +234,7 @@ jobs:
       contents: read
       issues: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Create issue comment on failure
         run: |

.github/workflows/jekyll-gh-pages.yml

@@ -30,7 +30,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Setup Pages
         uses: actions/configure-pages@v5
       - name: Build with Jekyll