Bump azure/aks-set-context from 3 to 4

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

---
updated-dependencies:
- dependency-name: azure/aks-set-context
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/cd.yaml

@@ -74,7 +74,7 @@ jobs:
           creds: "${{ secrets[format('AKS_{0}_FINT_GITHUB', steps.environment.outputs.name)] }}"
 
       - name: Set the target cluster
-        uses: azure/aks-set-context@v3
+        uses: azure/aks-set-context@v4
         with:
           cluster-name: ${{ matrix.cluster }}
           resource-group: rg-aks-${{ steps.environment.outputs.name }}