chore(deps): update actions/checkout action to v5 (#928)

Reviewed-on: https://gitea.com/gitea/helm-gitea/pulls/928
Reviewed-by: techknowlogick <[email protected]>
Co-authored-by: Renovate Bot <[email protected]>
Co-committed-by: Renovate Bot <[email protected]>

.gitea/workflows/commitlint.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     container: commitlint/commitlint:19.9.1
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: check PR title
         run: |
           echo "${{ gitea.event.pull_request.title }}" | commitlint --config .commitlintrc.json