Automatic merge from submit-queue (batch tested with PRs 43884, 44712, 45124, 43883)

Increase Dashboard memory limits

**What this PR does / why we need it**: Increases memory requests and limits for Dashboard.

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes https://github.com/kubernetes/dashboard/issues/1431

**Special notes for your reviewer**: Dashboard crashes on large clusters, this change should fix that problem.

**Release note**:

```release-note
Increase Dashboard's memory requests and limits
```