feat: Add reset method to ServiceLocator

[Pijukatel]

Description

• Add reset method to service locator to better support tests and multiple Actor(...) initialization scenarios

Issues

• Related to: #Make Actor consistently reusable without raising ServiceConflictError

Testing

• Added unit test

Checklist

• CI passed

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.26%. Comparing base (7663404) to head (54d9a17).
⚠️ Report is 35 commits behind head on master.

Additional details and impacted files

@@ Coverage Diff @@ ## master #1759 +/- ## ========================================== - Coverage 92.31% 92.26% -0.06%  ========================================== Files 156 156 Lines 10644 10648 +4 ========================================== - Hits 9826 9824 -2  - Misses 818 824 +6 

Flag	Coverage Δ
unit	92.26% <100.00%> (-0.06%)	⬇️

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