Celery Instrumentation Cleanup

[TimPansino]

Overview

• Remove unnecessary instrumentation for Celery's build_tracer() function by patching compatibility with Celery's monkey-patching detection.
• Add tests for all methods of running or enqueueing tasks in Celery.
• Add additional logic for transaction naming for tasks run under map or starmap
• Remove unused code and comments.

[github-actions]

🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ PYTHON	bandit	2		0	5.39s
✅ PYTHON	black	8	0	0	2.16s
✅ PYTHON	flake8	8		0	1.09s
✅ PYTHON	isort	8	0	0	0.36s
✅ PYTHON	pylint	8		0	6.27s

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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 72.41379% with 8 lines in your changes are missing coverage. Please review.

Project coverage is 81.74%. Comparing base (3b46fad) to head (399f6da).

Files	Patch %	Lines
newrelic/hooks/application_celery.py	72.41%	6 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1128      +/-   ##
==========================================
- Coverage   81.77%   81.74%   -0.04%     
==========================================
  Files         192      192              
  Lines       21303    21300       -3     
  Branches     3707     3706       -1     
==========================================
- Hits        17420    17411       -9     
- Misses       2806     2813       +7     
+ Partials     1077     1076       -1     

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