Fix sort_context max_tokens & max_tokens param in verb

[andresmor-ms]

Description

Fix max_input_length configuration parameter for create_final_community_reports workflow.

Related Issues

#674

Proposed Changes

• Fix bug in sort_context
• Fix max_input_length not being used in prepare_community_reports verb (which caused the exceeding context flag to be wrongly set)
• Updated unit test for sort_context

Checklist

• [x] I have tested these changes locally.
• [x] I have reviewed the code changes.
• [ ] I have updated the documentation (if necessary).
• [x] I have added appropriate unit tests (if applicable).

Additional Notes