Automatic merge from submit-queue (batch tested with PRs 57434, 57221, 57417, 57474, 57481). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Send an event just before the Kubelet restarts to use a new config

**What this PR does / why we need it**:
This PR makes the Kubelet send events for configuration changes. This makes it much easier to see a recent history of configuration changes for the Kubelet. 

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #56895

**Special notes for your reviewer**:

**Release note**:
```release-note
NONE
```

/cc @dchen1107 @liggitt @dashpole