stole mailmap from sunpy #1863

Job	Run time
sdist_verify	12s
core / Load tox environments	5s
cron	0s
core / py313 (ubuntu-latest)	1m 12s
test / Load tox environments	8s
docs / Load tox environments	8s
test / py311 (windows-latest)	2m 2s
test / py310-oldestdeps (ubuntu-latest)	1m 17s
test / py312 (macos-latest)	1m 23s
docs / build_docs (ubuntu-latest)	1m 41s
publish	0s
notify	0s
	8m 8s

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