workflows: bump azure/setup-kubectl from 3.2 to 4

Bumps [azure/setup-kubectl](https://github.com/azure/setup-kubectl) from 3.2 to 4.
- [Release notes](https://github.com/azure/setup-kubectl/releases)
- [Changelog](https://github.com/Azure/setup-kubectl/blob/main/CHANGELOG.md)
- [Commits](Azure/setup-kubectl@v3.2...v4)

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/call-run-integration-test.yaml

@@ -203,7 +203,7 @@ jobs:
           version: v3.8.1
 
       - name: Set up Kubectl
-        uses: azure/setup-kubectl@v3.2
+        uses: azure/setup-kubectl@v4
 
       - name: Run tests
         timeout-minutes: 60
@@ -260,7 +260,7 @@ jobs:
           version: v3.8.1
 
       - name: Set up Kubectl
-        uses: azure/setup-kubectl@v3.2
+        uses: azure/setup-kubectl@v4
 
       - name: Get the GKE Kubeconfig
         if: matrix.cloud == 'gke'

.github/workflows/call-test-images.yaml

@@ -192,7 +192,7 @@ jobs:
           version: v3.6.3
 
       - name: Set up Kubectl
-        uses: azure/setup-kubectl@v3.2
+        uses: azure/setup-kubectl@v4
 
       - name: Test the HTTP server is responding
         timeout-minutes: 5