Configure lint-mitre to ignore schema test files

[ben-githubs]

Background

Schema test files typically contain multiple documents, separated by dashes. The Analysis Spec loader used by Panther Analysis Tool doesn't support such files, and causes errors if they are present in the repo when make lint-mitre is run. Since schema tests do not contain MITRE mappings, we added an exclusion pattern to prevent schema test files from being loaded by the script.

Changes

• Added a check to ignore any files with names matching *_tests.y*ml from the linting script

Testing

• Tested script with several schema test files in repo, each containing multiple documents, and confirmed that no errors occurred

[geoffg-sentry]

Thanks ben 🫡

[github-actions]

😱
looks like some things could be wrong with the packs