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

Author: renovate[bot]

.github/workflows/lint.yml

@@ -7,7 +7,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
       - uses: actions/setup-node@v4
         with:
           node-version: 16

.github/workflows/release-please.yml

@@ -17,7 +17,7 @@ jobs:
         id: release
         with:
           command: manifest
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         if: ${{ steps.release.outputs.release_created }}
       - uses: actions/setup-node@v4
         with: