Add custom repository support for selective repositories

[Thevakumar-Luheerathan]

Purpose

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Fixes #41016

Approach

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Samples

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Remarks

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Check List

• Read the Contributing Guide
• Updated Change Log
• Checked Tooling Support (#)
• Added necessary tests
  • Unit Tests
  • Spec Conformance Tests
  • Integration Tests
  • Ballerina By Example Tests
• Increased Test Coverage
• Added necessary documentation
  • API documentation
  • Module documentation in Module.md files
  • Ballerina By Examples

[codecov]

Codecov Report

Patch coverage: 60.78% and project coverage change: +0.01% 🎉

Comparison is base (da1883c) 76.37% compared to head (64982e4) 76.39%.
Report is 260 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #41177      +/-   ##
============================================
+ Coverage     76.37%   76.39%   +0.01%     
- Complexity    52093    52252     +159     
============================================
  Files          2857     2860       +3     
  Lines        195924   196465     +541     
  Branches      25395    25489      +94     
============================================
+ Hits         149642   150084     +442     
- Misses        37983    38049      +66     
- Partials       8299     8332      +33     

Files Changed	Coverage Δ
...rc/main/java/io/ballerina/cli/cmd/PushCommand.java	3.22% <0.00%> (-0.78%)	⬇️
...a/io/ballerina/projects/util/ProjectConstants.java	0.00% <ø> (ø)
...oviders/createvar/ErrorHandleInsideCodeAction.java	90.90% <0.00%> (ø)
.../internal/repositories/MavenPackageRepository.java	36.36% <36.36%> (ø)
...o/ballerina/projects/internal/BlendedManifest.java	77.63% <37.83%> (-12.85%)	⬇️
...s/internal/environment/DefaultPackageResolver.java	71.17% <40.74%> (-10.01%)	⬇️
...ojects/internal/environment/BallerinaUserHome.java	60.29% <43.75%> (-5.17%)	⬇️
.../ballerina/projects/internal/ResolutionEngine.java	87.62% <50.00%> (-0.30%)	⬇️
...g/diagramutil/connector/models/connector/Type.java	73.77% <50.00%> (ø)
.../src/main/java/io/ballerina/projects/Settings.java	42.85% <71.42%> (+5.35%)	⬆️
... and 15 more

... and 64 files with indirect coverage changes

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