feat: add Thanos metrics provider

[mowies]

fixes #2900

[codecov]

Codecov Report

Attention: Patch coverage is 80.00000% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 88.04%. Comparing base (25d5c06) to head (1badc4e).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3358   +/-   ##
=======================================
  Coverage   88.04%   88.04%           
=======================================
  Files         176      176           
  Lines        9604     9604           
=======================================
  Hits         8456     8456           
  Misses        854      854           
  Partials      294      294           

Files	Coverage Δ
...rics-operator/api/v1/keptnmetricsprovider_types.go	66.66% <ø> (ø)
...-operator/controllers/common/providers/provider.go	100.00% <100.00%> (ø)
...trollers/common/providers/prometheus/prometheus.go	84.56% <75.00%> (ø)

Flag	Coverage Δ
certificate-operator	69.23% <ø> (ø)
component-tests	58.04% <ø> (ø)
lifecycle-operator	88.08% <ø> (ø)
metrics-operator	88.32% <80.00%> (ø)
scheduler	34.74% <ø> (ø)

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[odubajDT]

Looks good, did you manage to test it also manually?

[mowies]

i did not test is manually, but i checked how Thanos is set up and it's just a sidecar for prometheus instances so it should really be not different at all compared to prometheus
source

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud