build(deps): bump helm/chart-testing-action from 2.3.1 to 2.4.0

Bumps [helm/chart-testing-action](https://github.com/helm/chart-testing-action) from 2.3.1 to 2.4.0.
- [Release notes](https://github.com/helm/chart-testing-action/releases)
- [Commits](helm/chart-testing-action@v2.3.1...v2.4.0)

---
updated-dependencies:
- dependency-name: helm/chart-testing-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

.github/workflows/publish.yaml

@@ -70,7 +70,7 @@ jobs:
         with:
           python-version: 3.7
       - name: Set up chart-testing
-        uses: helm/chart-testing-action@v2.3.1
+        uses: helm/chart-testing-action@v2.4.0
       - uses: actions/setup-go@v4
         with:
           go-version: 1.19