Fix AI test failures & do not run graphqlmaster tests

[hmstepanek]

Overview

Fix the following AI test failures:

• Bedrock changed the order of payload assertions in commit: https://github.com/boto/botocore/commit/db41663ea2fa84cb77d548934c92d3d5c26c2c05 which resulted in the expected error being different due to the validator order change.
• Langchain added metadata to Document interface so update expected events with this field.
• pydantic ValidationError moved locations so adjust the path to the error in the tests.
• Langchain doesn't list support for Python3.8 so do not test it on Python3.8.
• Graphql main tests are failing so comment these out for now.

[github-actions[bot]]

🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ PYTHON	black	3	0	0	1.22s
✅ PYTHON	flake8	3		0	0.51s
✅ PYTHON	isort	3	0	0	0.22s
✅ PYTHON	pylint	3		0	4.23s

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

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 81.59%. Comparing base (d642980) to head (7e19ad8).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1211 +/- ## ========================================== + Coverage 80.05% 81.59% +1.54% ========================================== Files 197 197 Lines 21803 21803 Branches 3807 3807 ========================================== + Hits 17454 17790 +336 + Misses 3239 2897 -342 - Partials 1110 1116 +6 ```

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[hmstepanek]

@umaannamalai Would you mind giving this another review? I've added a couple additional fixes for langchain and graphql tests.