feat: configurable operator maxConcurrentReconciles

[husnialhamdani]

Description
configurable operator maxConcurrentReconciles: running multiple instances of (Replication, Sentinel, Cluster) will make the reconcile faster without the need to wait one by one processing.

Fixes #ISSUE

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist

• Tests have been added/modified and all tests pass.
• Functionality/bugs have been confirmed to be unchanged or fixed.
• I have performed a self-review of my own code.
• Documentation has been updated or added where necessary.

Additional Context

[husnialhamdani]

Please check and review @drivebyer

[drivebyer]

Fix the failing checks plz @husnialhamdani

[husnialhamdani]

Fix the failing checks plz @husnialhamdani

What's is wrong with the CI/ lint ?
I was trying to check what's wrong, but couldn't find the clue

[drivebyer]

Try to rebase on master branch firstly @husnialhamdani

[husnialhamdani]

Try to rebase on master branch firstly @husnialhamdani

Seems I found the problem, let me fix first

[codecov]

Codecov Report

Attention: Patch coverage is 42.10526% with 11 lines in your changes missing coverage. Please review.

Project coverage is 28.81%. Comparing base (60ef5a2) to head (4e7b70f).
Report is 46 commits behind head on master.

Files with missing lines	Patch %	Lines
main.go	0.00%	11 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1242      +/-   ##
==========================================
- Coverage   30.20%   28.81%   -1.39%     
==========================================
  Files          55       58       +3     
  Lines        6294     6771     +477     
==========================================
+ Hits         1901     1951      +50     
- Misses       4200     4656     +456     
+ Partials      193      164      -29     

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[drivebyer]

LGTM