ruff

7391f74c - Add hidden `--extension` to override inference of source type from file extension (#8373)

Add hidden `--extension` to override inference of source type from file extension (#8373) ## Summary This PR addresses the incompatibility with `jupyterlab-lsp` + `python-lsp-ruff` arising from the inference of source type from file extension, raised in #6847. In particular it follows the suggestion in https://github.com/astral-sh/ruff/issues/6847#issuecomment-1765724679 to specify a mapping from file extension to source type. The source types are - python - pyi - ipynb Usage: ```sh ruff check --no-cache --stdin-filename Untitled.ipynb --extension ipynb:python ``` Unlike the original suggestion, `:` instead of `=` is used to associate file extensions to language since that is what is used with `--per-file-ignores` which is an existing option that accepts a mapping. ## Test Plan 2 tests added to `integration_test.rs` to ensure the override works as expected --------- Co-authored-by: Charlie Marsh <charlie.r.marsh@gmail.com>