[Feature] Introduce global repository setting

[chmouel]

We now have a global repository setting that can be set in the namespace where the controller is installed. This allows you to have a default setting for all repositories that don't override it.

Jira: https://issues.redhat.com/browse/SRVKP-4425 https://issues.redhat.com/browse/SRVKP-4069

Changes

Submitter Checklist

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[codecov[bot]]

Codecov Report

Attention: Patch coverage is 58.53659% with 51 lines in your changes are missing coverage. Please review.

Project coverage is 64.39%. Comparing base (e8a2251) to head (e787246).

Files	Patch %	Lines
pkg/reconciler/reconciler.go	6.89%	26 Missing and 1 partial :warning:
pkg/pipelineascode/match.go	55.55%	5 Missing and 3 partials :warning:
pkg/reconciler/finalizer.go	12.50%	6 Missing and 1 partial :warning:
pkg/pipelineascode/secret.go	77.77%	2 Missing and 4 partials :warning:
pkg/adapter/adapter.go	81.25%	2 Missing and 1 partial :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1667      +/-   ##
==========================================
- Coverage   64.53%   64.39%   -0.15%     
==========================================
  Files         143      143              
  Lines       11023    11084      +61     
==========================================
+ Hits         7114     7137      +23     
- Misses       3388     3421      +33     
- Partials      521      526       +5     

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[chmouel]

@sm43 i am starting with a repository.Get for now, will do the watch thing in later PR (since it's already rather big)

[chmouel]

/retest