feat: implement starting collator local node with custom keys

[abhiyana]

Description:

Commit Message

feat: implement starting collator local node with custom keys

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Changelog Entry

1: user can start polkadot/kusama local parachain collator node with his own keys

Checklist:

• I have performed a self-review of my own code
• I have documented my code in accordance with the documentation guidelines
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• I have run the unit tests
• I only have one commit (if not, squash them into one commit).
• I have a descriptive commit message that adheres to the commit message guidelines

Please review the CONTRIBUTING.md file for detailed contributing guidelines.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (06d1540) 12.40% compared to head (20c922a) 12.40%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #363   +/-   ##
=======================================
  Coverage   12.40%   12.40%           
=======================================
  Files          11       11           
  Lines        1177     1177           
=======================================
  Hits          146      146           
  Misses       1019     1019           
  Partials       12       12           

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