changing-files: drop the now useless changelogrevision argument
Since all filename are now included in the sidedata block, we no longer need to decode the `files` from the revision.
Differential Revision: https://phab.mercurial-scm.org/D9091
[tool.black]
line-length = 80
exclude = '''
build/
| wheelhouse/
| dist/
| packages/
| \.hg/
| \.mypy_cache/
| \.venv/
| mercurial/thirdparty/
'''
skip-string-normalization = true
quiet = true