build(deps): bump azure/setup-helm from 3.5 to 4 (#30)

Bumps [azure/setup-helm](https://github.com/azure/setup-helm) from 3.5 to 4.
- [Release notes](https://github.com/azure/setup-helm/releases)
- [Changelog](https://github.com/Azure/setup-helm/blob/main/CHANGELOG.md)
- [Commits](Azure/setup-helm@v3.5...v4)

---
updated-dependencies:
- dependency-name: azure/setup-helm
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/helm-lint.yaml

@@ -49,7 +49,7 @@ jobs:
         with:
           fetch-depth: 0
       - name: helm (setup)
-        uses: azure/setup-helm@v3.5
+        uses: azure/setup-helm@v4
         with:
           version: v3.8.1
       - name: python (setup)

.github/workflows/publish-new-release.yml

@@ -141,7 +141,7 @@ jobs:
         with:
           fetch-depth: 0
       - name: Install Helm
-        uses: azure/setup-helm@v3.5
+        uses: azure/setup-helm@v4
         with:
           version: v3.8.1
       - name: Package helm, update index.yaml and push to gh-pages

.github/workflows/upgradeability-test.yaml

@@ -46,7 +46,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: "Setup Helm"
-        uses: azure/setup-helm@v3.5
+        uses: azure/setup-helm@v4
         with:
           version: v3.8.1