feat(chart): Added additional service monitor functionality

[stevehipwell]

Issue

This PR will allow manual remediation of #2897.

Description

This PR adds the ability to set the Helm chart ServiceMonitor endpoint values for scrapeTimeout, relabelings & metricRelabelings. It also fixes the jobLabel functionality (it should be a label name and not a value) and refactors the ServiceMonitor template for easier readability.

Checklist

• Added tests that cover your change (if possible)
• Added/modified documentation as required (such as the README.md, or the docs directory)
• Manually tested
• Made sure the title of the PR is a good description that can go into the release notes

BONUS POINTS checklist: complete for good vibes and maybe prizes?! 🤯

• Backfilled missing tests for code in same general area 🎉
• Refactored something and made the world a better place 🌟

[stevehipwell]

@kishorj @oliviassss could you please take a look at this PR? The failing workflow looks to have been failing for a while and the fix PR (#3600) was closed.

[stevehipwell]

/retest

[stevehipwell]

/retest

[stevehipwell]

@kishorj @oliviassss could you please take a look at this PR?

[oliviassss]

just for my understanding, why we specify http explicitly here?

[stevehipwell]

I always set the scheme so it's very clear what the intent is even for someone who's starting at the ServiceMonitor and working up through the other resources. From an implementation point of view this is something where even though the default is correct we 100% care about the value, so we should explicitly set it.

[oliviassss]

/retest

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 55.40%. Comparing base (b44633a) to head (32f83a0).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3645   +/-   ##
=======================================
  Coverage   55.40%   55.40%           
=======================================
  Files         151      151           
  Lines        9144     9144           
=======================================
  Hits         5066     5066           
  Misses       3736     3736           
  Partials      342      342           

☔ View full report in Codecov by Sentry.
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[oliviassss]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: oliviassss, stevehipwell

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[stevehipwell]

@oliviassss it looks like the dependency review job is currently failing across the board (also this PR isn't making any changes to the deps), are you planning on manually merging?