Asyncio loop_factory fix

[lrafeei]

In Python 3.11, the asyncio.Runner class was added as well as the loop_factory parameter. The loop_factory parameter provides a replacement for loop policies (which are scheduled for removal in Python 3.16).

This PR instruments the loop that is created, regardless of whether it is through an global event loop setting or a custom event loop.

Closes #1581

[github-actions]

✅MegaLinter analysis: Success

Descriptor	Linter	Files	Fixed	Errors	Warnings	Elapsed time
✅ ACTION	actionlint	7		0	0	0.92s
✅ MARKDOWN	markdownlint	7	0	0	0	1.12s
✅ PYTHON	ruff	948	0	0	0	1.08s
✅ PYTHON	ruff-format	948	0	0	0	0.32s
✅ YAML	prettier	15	0	0	0	1.55s
✅ YAML	v8r	15		0	0	5.82s
✅ YAML	yamllint	15		0	0	0.69s

See detailed reports in MegaLinter artifacts

[codecov-commenter]

Codecov Report

❌ Patch coverage is 95.83333% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 81.80%. Comparing base (32215b9) to head (8b8547e).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
newrelic/hooks/coroutines_asyncio.py	95.45%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1576      +/-   ##
==========================================
- Coverage   81.81%   81.80%   -0.01%     
==========================================
  Files         207      207              
  Lines       23953    23965      +12     
  Branches     3799     3801       +2     
==========================================
+ Hits        19597    19605       +8     
- Misses       3087     3090       +3     
- Partials     1269     1270       +1     

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