Fixes for langchain & openai

[hmstepanek]

Overview

• Fix issue in langchain where a thread is started and the transaction context is lost.
• Fix issue in openai where the message response and request is a different format when running via langchain.
• Fix issue in openai where chat class moved to a different path.
• Change to using auto bind_args in case function signature changes.

[github-actions[bot]]

🦙 MegaLinter status: ❌ ERROR

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ PYTHON	bandit	3		0	6.18s
✅ PYTHON	black	6	0	0	2.71s
✅ PYTHON	flake8	6		0	1.34s
✅ PYTHON	isort	6	0	0	0.28s
❌ PYTHON	pylint	6		33	9.99s

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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 85.41667% with 7 lines in your changes missing coverage. Please review.

Project coverage is 81.62%. Comparing base (ec59999) to head (f7719a3).

Files with missing lines	Patch %	Lines
newrelic/hooks/mlmodel_langchain.py	81.57%	2 Missing and 5 partials :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1199 +/- ## ========================================== - Coverage 81.64% 81.62% -0.03% ========================================== Files 197 197 Lines 21773 21803 +30 Branches 3802 3807 +5 ========================================== + Hits 17777 17797 +20 - Misses 2890 2893 +3 - Partials 1106 1113 +7 ```

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