workflows: bump azure/setup-helm from 3.5 to 4 (#138)

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/call-run-integration-test.yaml

@@ -199,7 +199,7 @@ jobs:
           config: tests/kind.yaml
 
       - name: Set up Helm
-        uses: azure/setup-helm@v3.5
+        uses: azure/setup-helm@v4
         with:
           version: v3.8.1
 
@@ -257,7 +257,7 @@ jobs:
           bats-version: 1.9.0
 
       - name: Set up Helm
-        uses: azure/setup-helm@v3.5
+        uses: azure/setup-helm@v4
         with:
           version: v3.8.1