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

Author: renovate[bot]

.github/workflows/autofix.yml

@@ -11,7 +11,7 @@ jobs:
   autofix:
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: pnpm/action-setup@v4
       - name: Setup Node
         uses: actions/setup-node@v4

.github/workflows/checks.yml

@@ -13,7 +13,7 @@ jobs:
     outputs:
       lints: ${{ steps.lints.outputs.value }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: sergeysova/jq-action@v2
         id: lints
         with:
@@ -26,7 +26,7 @@ jobs:
       matrix:
         linter: ${{ fromJSON(needs.define-lints.outputs.lints) }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: pnpm/action-setup@v4
       - name: Setup Node
         uses: actions/setup-node@v4

.github/workflows/tests.yml

@@ -17,7 +17,7 @@ jobs:
       checks: write
       contents: read
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: pnpm/action-setup@v4
       - name: Setup Node
         uses: actions/setup-node@v4