fix(gitlab-runner): Fix volume attach errors with hetzner-runner

This patch fixes some multi-attach errors that take place, due to the
volume used to store the docker-machine configs. Since the upstream
helmchart doesn't allow adjustment of the deployment strategy, this
post render will take care of it.

apps/k8s01/gitlab-runner/hetzner-runner.yaml

@@ -22,6 +22,17 @@ spec:
   upgrade:
     remediation:
       retries: -1
+  postRenderers:
+    - kustomize:
+        patchesStrategicMerge:
+          - kind: Deployment
+            apiVersion: apps/v1
+            metadata:
+              name: hetzner-runner-gitlab-runner
+              namespace: gitlab-runner
+            spec:
+              strategy:
+                type: Recreate
   valuesFrom:
     - kind: ConfigMap
       name: gitlab-runner-base-values