[ws-manager] Add event to workspace Pod when the PVC restored from the VolumeSnapshot

[jenting]

Description

We add an event to the workspace Pod in #10889 for the take volume snapshot operation (InProgress, ReadyToUse).
In this PR, we add an event to the workspace Pod when the PVC is restored from the VolumeSnapshot.
Hence, we would know the workspace Pod PVC is restored from the VolumeSnapshot or not.

Related Issue(s)

Fixes #10887

How to test

1. Create a preview environment and enable the feature flag persistent_volume_claim.
2. Launch a workspace
3. Describe the workspace pod, and the event message should matches

   Events:
     Type    Reason                  Age   From                     Message
     ----    ------                  ----  ----                     -------
     Normal  PersistentVolumeClaim   19s   ws-manager               PVC "<pvd-name>" created successfully

4. and write a large data into it.

   dd if=/dev/urandom of=data bs=16M count=1

5. Stop the workspace.
6. Relaunch the workspace, and describe the workspace pod, the event message should matches

   Events:
     Type    Reason                  Age   From                     Message
     ----    ------                  ----  ----                     -------
     Normal  PersistentVolumeClaim   3s    ws-manager               PVC "<pvc-name>" restored from volume snapshot "<volume-snapshot-name>" successfully

Release Notes

[experimental] Add PVC created message to the workspace pod event

Documentation

N/A

Werft options:

• /werft with-preview

[jenting]

/werft run -a with-preview=true

👍 started the job as gitpod-build-jenting-10887.1
(with .werft/ from main)

[sagor999]

LGTM
/hold
for fixing log

[sagor999]

/unhold