Automatic merge from submit-queue (batch tested with PRs 49316, 46117, 49064, 48073, 49323)

add e2e tests for the bootstrapsigner and tokencleaner controllers, integration testing for bootstrap token auth

**What this PR does / why we need it**:
Add e2e test for bootstrap signer

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #

**Special notes for your reviewer**:

**Release note**:
```
None
```