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

Author: renovate[bot]

.github/workflows/ci.yaml

@@ -18,7 +18,7 @@ jobs:
       matrix:
         node-version: [20.x, 24.x]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node-version }}

.github/workflows/publish-release.yaml

@@ -23,7 +23,7 @@ jobs:
       version: ${{ env.INPUT_VENDOR_VERSION }}
       prerelease: ${{ steps.versioning.outputs.is-prerelease }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Determine release version
         id: versioning
         uses: Fresa/trunk-based-release-versioning@v0
@@ -57,7 +57,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: create_release
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-node@v4
         with:
           node-version: 22.x