CAPZ: bigger control plane nodes for DRA e2e tests

Author: nojnhuh

config/jobs/kubernetes-sigs/cluster-api-provider-azure/cluster-api-provider-azure-periodics-main.yaml

@@ -122,6 +122,8 @@ periodics:
           value: ${GOPATH}/src/sigs.k8s.io/cluster-api-provider-azure/test/e2e/data/kubetest/conformance-dra-ginkgo-v2.yaml
         - name: KUBERNETES_VERSION
           value: latest
+        - name: AZURE_CONTROL_PLANE_MACHINE_TYPE
+          value: Standard_D8s_v3
         # docker-in-docker needs privileged mode
         securityContext:
           privileged: true