Bump azure/setup-helm from 3 to 4

Bumps [azure/setup-helm](https://github.com/azure/setup-helm) from 3 to 4.
- [Release notes](https://github.com/azure/setup-helm/releases)
- [Changelog](https://github.com/Azure/setup-helm/blob/main/CHANGELOG.md)
- [Commits](https://github.com/azure/setup-helm/compare/v3...v4)

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

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

.github/workflows/helm.yml

@@ -27,7 +27,7 @@ jobs:
           git config user.email "$GITHUB_ACTOR@users.noreply.github.com"
 
       - name: Install Helm
-        uses: azure/setup-helm@v3
+        uses: azure/setup-helm@v4
         with:
           version: v3.10.0
 

.github/workflows/k8s.yml

@@ -20,7 +20,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
-      - uses: azure/setup-helm@v3
+      - uses: azure/setup-helm@v4
         with:
           version: v3.10.0
       - uses: actions/setup-python@v5