Increase CSI sidecar operation timeout

1. Timeouts increased for staging head overlay only
2. Operation timeouts changed for attacher, provisioner and snapshotter.

Author: saikat-royc

deploy/kubernetes/overlays/prow-gke-release-staging-head/increase-sidecar-operation-timeout.yaml

@@ -0,0 +1,12 @@
+# Increase operation timeout for provisioner sidecar.
+- op: add
+  path: /spec/template/spec/containers/0/args/-
+  value: "--timeout=250s"
+# Increase operation timeout for attacher sidecar.
+- op: add
+  path: /spec/template/spec/containers/1/args/-
+  value: "--timeout=250s"
+# Increase operation timeout for snapshotter sidecar.
+- op: add
+  path: /spec/template/spec/containers/3/args/-
+  value: "--timeout=300s"

deploy/kubernetes/overlays/prow-gke-release-staging-head/kustomization.yaml

@@ -17,3 +17,9 @@ patchesJson6902:
     kind: Deployment
     name: csi-gce-pd-controller
   path: volume-inuse-error-handler.yaml
+- target:
+    group: apps
+    version: v1
+    kind: Deployment
+    name: csi-gce-pd-controller
+  path: increase-sidecar-operation-timeout.yaml