[ci] Show diff on pre-commit failure.
@@ -55,4 +55,4 @@ jobs:
# TODO(github.com/facebookresearch/CompilerGym/issues/1): Disable
# isort due to inconsistent results when run locally versus in
# the GitHub Actions environment.
- run: SKIP=isort python3 -m pre_commit run --all-files
+ run: SKIP=isort python3 -m pre_commit run --all-files --show-diff-on-failure
