chore(deps): update actions/checkout action to v6

Author: renovate[bot]

.github/workflows/lint.yml

@@ -14,7 +14,7 @@ jobs:
         password: ${{ secrets.DOCKER_HUB_API_KEY }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: pnpm setup
         uses: pnpm/action-setup@v4
       - name: Setup Node

.github/workflows/pin-dependencies-check.yml

@@ -14,7 +14,7 @@ jobs:
         password: ${{ secrets.DOCKER_HUB_API_KEY }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Check for pinned dependencies
         run: |
           node -e '

.github/workflows/pr-title-check.yml

@@ -12,7 +12,7 @@ jobs:
         password: ${{ secrets.DOCKER_HUB_API_KEY }}
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Run PR title check
         run: |
           node .github/scripts/pr-title-check.js