Automatic merge from submit-queue (batch tested with PRs 62901, 66562, 66938, 66927, 66926). 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>.

Sets higher memory limit for init_container tests

**What this PR does / why we need it**:

/sig testing

Currently, the limit set in the tests is 30 MB, which will cause
the Docker service on the Windows nodes to hang and be no longer
responsive. This will cause the Kubelet service to enter a NotReady state.

Setting a higher memory limit (50 MB) will avoid this issue.

**Which issue(s) this PR fixes**:
Fixes #37429

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```