Add metrics names to common schema

[DariaKunoichi]

This change is 

[codecov]

Codecov Report

Merging #212 (1d93a36) into main (f5fb8cb) will decrease coverage by 39.19%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main    #212       +/-   ##
==========================================
- Coverage   42.61%   3.41%   -39.20%     
==========================================
  Files         207     224       +17     
  Lines       15745   18627     +2882     
==========================================
- Hits         6710     637     -6073     
- Misses       8632   17920     +9288     
+ Partials      403      70      -333     

Impacted Files	Coverage Δ
cmd/aperture-controller/controller/provider.go	0.00% <0.00%> (ø)
operator/controllers/agent_daemonset.go	0.00% <ø> (ø)
operator/controllers/agent_pod.go	0.00% <ø> (ø)
operator/controllers/aperture_controller.go	0.00% <ø> (ø)
operator/controllers/clusterrole.go	0.00% <ø> (ø)
operator/controllers/configmaps.go	0.00% <ø> (ø)
operator/controllers/controller_deployment.go	0.00% <ø> (ø)
...ator/controllers/mutating_webhook_configuration.go	0.00% <ø> (ø)
operator/controllers/mutating_webhook_handler.go	0.00% <ø> (ø)
operator/controllers/namespace_controller.go	0.00% <ø> (ø)
... and 186 more

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