Merge branch 'vnagy-cloud-run' into 'master'

Cloud Run for Anthos

See merge request gitlab-com/www-gitlab-com!36948

data/release_posts/unreleased/vnagy-cloudrun.yml

+features:
+  secondary:
+    - name: "Cloud Run for Anthos support in GKE Kubernetes clusters"
+      available_in: [core, starter, premium, ultimate]
+      documentation_link: 'https://docs.gitlab.com/ee/user/project/clusters/add_remove_clusters.html#cloud-run-on-gke'
+      image_url: '/images/12_4/cloud_run_v12_4.png'
+      reporter: nagyv.gitlab
+      stage: configure
+      issue_url: 'https://gitlab.com/gitlab-org/gitlab/issues/27502'
+      description: |
+        When creating a Kubernetes cluster via GitLab's GKE integration, users
+        can now optionally enable "Cloud Run on Anthos" with a single click. GKE
+        will automatically provision the cluster with Knative serving, Istio,
+        and HTTP load balancing, and Cloud Run will take care of keeping the 
+        cluster upgraded. When installed, users can continue to take
+        advantage of the features offered by [GitLab
+        Serverless](https://docs.gitlab.com/ee/user/project/clusters/serverless/)
+        to deploy Knative services with minimal configuration.
+
+        Note: We announced Cloud Run for Anthos support in GitLab 12.4, however we
+        had to switch it off later due to compatibility issues. We've been working
+        hard to ship a future-proof integration.
\ No newline at end of file