Add license headers via pre-commit hook #1870

Job	Run time
Code style	1m 36s
Documentation build	4m 30s
Tests and coverage (ubuntu-latest, 3.9)	7m 41s
Documentation style	13s
Test with lower-bound dependency versions	2m 57s
Tests and coverage (ubuntu-latest, 3.10)	7m 47s
Tests and coverage (ubuntu-latest, 3.11)	16m 43s
Tests and coverage (ubuntu-latest, 3.12)	10m 33s
Build wheelhouse for latest Python versions (ubuntu-latest, 3.9)	37s
Build package	25s
Build wheelhouse for latest Python versions (ubuntu-latest, 3.10)	42s
Build wheelhouse for latest Python versions (ubuntu-latest, 3.11)	36s
Build wheelhouse for latest Python versions (ubuntu-latest, 3.12)	50s
Build wheelhouse for latest Python versions (windows-latest, 3.9)	2m 22s
Build wheelhouse for latest Python versions (windows-latest, 3.10)	2m 13s
Build wheelhouse for latest Python versions (windows-latest, 3.11)	3m 34s
Build wheelhouse for latest Python versions (windows-latest, 3.12)	2m 32s
Deploy development documentation	0s
Release project	0s
Deploy stable documentation	0s
	1h 5m 51s

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