Automatic merge from submit-queue (batch tested with PRs 45070, 45821, 45732, 45494, 45789)

Fix lint errors in juju kubernetes master and e2e charms

**What this PR does / why we need it**: Fixes style error in the Juju charms

**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**:

```
Code style fixes in Juju charms
```