Automatic merge from submit-queue
Pod creation moved outside of docker manager tests
**What this PR does / why we need it**:
It cleans up docker manager tests a little.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, #<issue_number>, ...)` format, will close that issue when PR gets merged)*: related to #31550
**Special notes for your reviewer**:
I don't claim that working on this issue is finished, I cleaned up the tests just a bit
**Release note**:
```release-note
NONE
```
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