Fix Missing __await__ Method in aiomysql Instrumentation

[TimPansino]

Overview

• Previously using aiomysql.sa (the included sqlalchemy engine) would result in a crash, as the library attempted to call __await__ on the _ContextManager class, which was now wrapped.
  • This has been fixed by adding a __await__() method that implements the bidirectional generator protocol, and wraps the returned cursor.

[github-actions]

🦙 MegaLinter status: ❌ ERROR

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
❌ PYTHON	ruff	3	3	1	0.07s

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Codecov Report

Attention: Patch coverage is 47.05882% with 9 lines in your changes missing coverage. Please review.

Project coverage is 81.29%. Comparing base (1efefe7) to head (b8808e2).

Files with missing lines	Patch %	Lines
newrelic/hooks/database_aiomysql.py	47.05%	9 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1305      +/-   ##
==========================================
- Coverage   81.30%   81.29%   -0.02%     
==========================================
  Files         203      203              
  Lines       22492    22509      +17     
  Branches     3567     3567              
==========================================
+ Hits        18287    18298      +11     
- Misses       3019     3025       +6     
  Partials     1186     1186              

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