ci(deps): bump azure/setup-kubectl from 3 to 4

Bumps [azure/setup-kubectl](https://github.com/azure/setup-kubectl) from 3 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...v4)

---
updated-dependencies:
- dependency-name: azure/setup-kubectl
  dependency-version: '4'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/rollback.yml

@@ -102,7 +102,7 @@ jobs:
 
     steps:
       - name: Setup kubectl
-        uses: azure/setup-kubectl@v3
+        uses: azure/setup-kubectl@v4
         with:
           version: 'v1.28.0'
 
@@ -203,7 +203,7 @@ jobs:
 
     steps:
       - name: Setup kubectl
-        uses: azure/setup-kubectl@v3
+        uses: azure/setup-kubectl@v4
         with:
           version: 'v1.28.0'