Automatic merge from submit-queue (batch tested with PRs 57746, 57621, 56839, 57464). 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>.

 check pod securityContext hostNetwork in exec admission controller

**What this PR does / why we need it**:
currently only hostIPC hostPID are checked in DenyEscalatingExec admission controller,
hostNetwork should also be checked to deny exec /attach
**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 #56838

**Special notes for your reviewer**:

**Release note**:

```release-note
check psp HostNetwork in DenyEscalatingExec admission controller.
```