Bump actions/checkout from 4 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -30,7 +30,7 @@ jobs:
     # NATS started manually in steps to enable JetStream (-js)
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Free Disk Space
         run: |
@@ -202,15 +202,15 @@ jobs:
     permissions:
       contents: read
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: crate-ci/typos@master
 
   docker-verify:
     name: Verify Docker Build
     runs-on: ubuntu-latest
     needs: checks
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3

.github/workflows/commit-lint.yml

@@ -16,7 +16,7 @@ jobs:
         if: startsWith(github.event.pull_request.head.ref, 'release/')
         run: echo "⏭️ Skipping commit lint for release PR"
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         if: "!startsWith(github.event.pull_request.head.ref, 'release/')"
         with:
           fetch-depth: 0

.github/workflows/coverage.yml

@@ -15,7 +15,7 @@ jobs:
       contents: write
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Free Disk Space
         run: |

.github/workflows/release-prepare.yml

@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
     # Manual trigger only (workflow_dispatch) — no skip conditions needed
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/release-publish.yml

@@ -30,7 +30,7 @@ jobs:
       has_tap_token: ${{ steps.secrets.outputs.has_tap_token }}
       has_apt_token: ${{ steps.secrets.outputs.has_apt_token }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           ref: ${{ github.event.pull_request.merge_commit_sha }}
           fetch-depth: 0
@@ -139,7 +139,7 @@ jobs:
             deb_arch: ""
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           ref: ${{ needs.tag.outputs.tag }}
 
@@ -265,7 +265,7 @@ jobs:
     # Only run if the TAP_GITHUB_TOKEN secret is configured
     if: needs.tag.outputs.has_tap_token == 'true'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           ref: ${{ needs.tag.outputs.tag }}