Automatic merge from submit-queue (batch tested with PRs 59532, 59685, 59797). 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>.
Continue fixing bash scripts
**What this PR does / why we need it**:
This PR continues the work of fixing bugs in shell scripts (see https://github.com/kubernetes/kubernetes/pull/59572 for the previous PR). The fixed scripts are `hack/grab-profiles.sh` and `hack/update-codegen.sh`. Most of the issues are found by using `shellcheck`. The goal is to make the scripts work and behave as they did previously, but fix obvious bugs and make them more robust and resilient for irregular input such as file names with special characters or whitespace in them.
**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 #
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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