Cleanup ai part 1

[hmstepanek]

Overview

• Merge latest main into develop-ai-limited-preview-3 branch (this includes the change for dropping attributes with a value of None).

New commits on this PR that need to be reviewed:

• Fix tests that expect None attr values
• Remove custom events disabled tests
• Fix bug in vectorstore ids & refactor
• Refactor openai embedding
• Remove Supportability metric creation
• Fixup: lint missing blank lines

[github-actions[bot]]

🦙 MegaLinter status: ❌ ERROR

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ PYTHON	bandit	8		0	6.69s
✅ PYTHON	black	26	0	0	3.44s
✅ PYTHON	flake8	26		0	1.79s
✅ PYTHON	isort	26	0	0	0.27s
❌ PYTHON	pylint	26		37	13.92s

See detailed report in MegaLinter reports _Set VALIDATE_ALL_CODEBASE: true in mega-linter.yml to validate all sources, not only the diff_

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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 97.84946% with 2 lines in your changes are missing coverage. Please review.

:exclamation: No coverage uploaded for pull request base (develop-ai-limited-preview-3@6899e3d). Click here to learn what that means.

Files	Patch %	Lines
newrelic/hooks/mlmodel_langchain.py	88.23%	2 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop-ai-limited-preview-3 #1081 +/- ## =============================================================== Coverage ? 81.81% =============================================================== Files ? 192 Lines ? 21114 Branches ? 3695 =============================================================== Hits ? 17274 Misses ? 2778 Partials ? 1062 ```

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