feature: add scrapeClass to VMAgent, VMServiceScrape, VMPodScrape, VMProbe

[endesapt]

Fixes: #1531
Prometheus Operator introduced scrapeClass to standardize common configurations such as relabeling rules, TLS certificates, and authentication. This PR is created to provide compatibility with Prometheus resources by adding scrapeClassName to VMServiceScrape, VMPodScrape, VMProbe, VMScrapeConfig and scrapeClasses to VMAgent that is similar to scrapeClasses of Prometheus CRD.

[endesapt]

now i added scrapeClass only for ServiceScrape to get some feedback on my implementation in case this featured is not planned, my code is not ideal and i need to rethink it, or my help is not required. If everything is alright, i will add scrapeClass for the remaining resources

[endesapt]

I see that you self-assigned this task? Do you want us to work together or will u take this feature from here ? I would like to work on this if its not urgent and i am not against working together. It would be great if you tell your intentions so that there is no confusion.

[AndrewChubatiuk]

hey @endesapt
thanks for a PR
self assigned in our case means "interested in" and "added to list of PRs that are planned to be reviewed"

[f41gh7]

LGTM

[endesapt]

Thats great, then i will add simillar functionality to other components.

[f41gh7]

Thats great, then i will add simillar functionality to other components.

I'll create a small follow up and add missing APIs.

[endesapt]

Thats great, thanks for your fast responce!