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/chart-linting-and-testing.yml

@@ -44,7 +44,7 @@ jobs:
           python-version: "${{ env.PYTHON_VERSION }}"
 
       - name: "Setup chart-testing (lint)"
-        uses: "helm/chart-testing-action@v2.3.1"
+        uses: "helm/chart-testing-action@v2.4.0"
 
       - name: "Run chart-testing (list-changed)"
         id: list-changed