Update CIG189 testbed to basic-4 in sanity workflow

Signed-off-by: bhargavi-ct <bhargavi.mamidipaka@candelatech.com>

Author: bhargavi-ct

.github/workflows/quali.yml

@@ -360,7 +360,7 @@ jobs:
         uses: ./.github/actions/run-tests
         with:
           namespace: ${{ steps.namespace.outputs.name }}
-          testbed: basic-5a
+          testbed: basic-4
           marker_expression: "${{ needs.vars.outputs.marker_expression }}"
           configuration_file: "./lab_info.json"
           testing_docker_image: tip-tip-wlan-cloud-docker-repo.jfrog.io/cloud-sdk-nightly:${{ github.run_id }}
@@ -1519,7 +1519,7 @@ jobs:
         uses: ./.github/actions/run-tests
         with:
           namespace: ${{ steps.namespace.outputs.name }}
-          testbed: basic-2a
+          testbed: basic-4a
           marker_expression: "${{ needs.vars.outputs.marker_expression }}"
           configuration_file: "./lab_info.json"
           testing_docker_image: tip-tip-wlan-cloud-docker-repo.jfrog.io/cloud-sdk-nightly:${{ github.run_id }}