Bump peter-evans/create-pull-request from 7.0.6 to 7.0.8 (#473)

Bumps [peter-evans/create-pull-request](https://github.com/peter-evans/create-pull-request) from 7.0.6 to 7.0.8.
- [Release notes](https://github.com/peter-evans/create-pull-request/releases)
- [Commits](peter-evans/create-pull-request@67ccf78...271a8d0)

---
updated-dependencies:
- dependency-name: peter-evans/create-pull-request
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/sync-chart.yml

@@ -104,7 +104,7 @@ jobs:
         if: ${{ inputs.dry_run }}
 
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@67ccf781d68cd99b580ae25a5c18a1cc84ffff1f # v7.0.6
+        uses: peter-evans/create-pull-request@271a8d0340265f705b14b6d32b9829c1cb33d45e # v7.0.8
         with:
           token: ${{ secrets.NGINX_PAT }}
           commit-message: Update NGINX Ingress Controller to ${{ steps.sync.outputs.new_nic_version }}