Adds auth for probes and prometheus podMonitor endpoint

[mmoscher]

Descriptive description goes here.

Tasks:

• [x] I've made changes
• [ ] I've bumped chart's version in Chart.yaml
• [ ] I've added changes to charts CHANGELOG.md
• [ ] I've run helm-docs

[MaikuMori]

Hi, is this meant as a PR or a fork?

[mmoscher]

Hi, is this meant as a PR or a fork?

Should become a PR, but I didn't found any more time to finalize it yesterday. Thats why its marked as draft-pr. Hopefully it will be ready soon.

I can close it and reopen it again, if you prefer.

[MaikuMori]

No worries, I just saw you add your own deployment, that's why.