Add parser validation APIs and log-type CLI commands

[ishree-dev]

This PR introduces new SDK wrapper methods and CLI commands for Chronicle Parser Validation tooling. It specifically adds functionality to trigger GitHub checks for parsers and retrieve their corresponding analysis reports.
Key Changes:

• New SDK Methods (src/secops/chronicle/client.py & parser_validation.py):

• trigger_github_checks: Triggers a parser analysis report against an associated GitHub PR.

• get_analysis_report: Retrieves a completed parser analysis report using its full resource name.

• New CLI Commands (src/secops/cli/commands/log_type.py):

  • Implemented the secops log-type command group.
  • secops log-type trigger-checks --associated-pr --log-type <LOG_TYPE> --customer-id
  • secops log-type get-analysis-report --name <REPORT_NAME>

• Testing (tests/):

  • Added unit tests for the newly added ChronicleClient methods (test_client_parser_validation.py).
  • Added unit tests for CLI command handlers (test_log_type.py).
  • Added integration tests for the log-type CLI lifecycle (test_log_type_integration.py).

• Documentation:
  Updated api_module_mapping.md to map logTypes.triggerGitHubChecks and logTypes.getParserAnalysisReport to their respective CLI counterparts.