build(deps): bump azure/setup-helm from 2.1 to 3.1

Bumps [azure/setup-helm](https://github.com/azure/setup-helm) from 2.1 to 3.1.
- [Release notes](https://github.com/azure/setup-helm/releases)
- [Commits](Azure/setup-helm@v2.1...v3.1)

---
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/ci.yaml

@@ -100,7 +100,7 @@ jobs:
         wait: 10s # Without default CNI, control-plane doesn't get ready until Cilium is installed
         config: .github/workflows/kind/config.yml
     - name: Setup Helm
-      uses: azure/setup-helm@v2.1
+      uses: azure/setup-helm@v3.1
     - name: Install Cilium
       run: |
         helm repo add cilium https://helm.cilium.io/