chore(deps): update actions/checkout action to v6 (#11)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/ci.yaml

@@ -20,7 +20,7 @@ jobs:
           - "examples/aggregate"
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: bazel-contrib/setup-bazel@0.16.0
         with:
           bazelisk-cache: true

.github/workflows/tag.yaml

@@ -22,7 +22,7 @@ jobs:
       new-tag-version-type: ${{ steps.ccv.outputs.new-tag-version-type }}
       recently-tagged: ${{ steps.recent-tag.outputs.recently-tagged }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           # Need enough history to find the prior release tag
           fetch-depth: 0

.github/workflows/verify-hooks.yml

@@ -8,7 +8,7 @@ jobs:
   verify-hooks:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 100
       - uses: pnpm/action-setup@v4