Bump actions/checkout from 3 to 4 in /.github/actions/helm-publish-chart

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v3...v4)

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/actions/helm-publish-chart/action.yml

@@ -40,7 +40,7 @@ runs:
       run: echo "CHECKOUT_PATH=$(uuidgen)" >> $GITHUB_ENV
 
     - name: Checkout charts repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         path: ${{ env.CHECKOUT_PATH }}
         repository: ${{ inputs.helm-charts-repo }}