chore: add D212 lint rule to enforce Google-style docstrings (#1892) #163

Job	Run time
checks / readme-snippets	11s
checks / pre-commit	33s
checks / test (3.10, locked, ubuntu-latest)	45s
checks / test (3.10, lowest-direct, ubuntu-latest)	44s
checks / test (3.10, lowest-direct, windows-latest)	2m 19s
checks / test (3.11, lowest-direct, ubuntu-latest)	47s
checks / test (3.11, lowest-direct, windows-latest)	2m 35s
checks / test (3.10, locked, windows-latest)	2m 21s
checks / test (3.14, locked, ubuntu-latest)	2m 15s
checks / test (3.13, lowest-direct, ubuntu-latest)	45s
checks / test (3.12, lowest-direct, ubuntu-latest)	51s
checks / test (3.11, locked, ubuntu-latest)	44s
checks / test (3.13, lowest-direct, windows-latest)	2m 33s
checks / test (3.13, locked, ubuntu-latest)	44s
checks / test (3.12, locked, windows-latest)	3m 22s
checks / test (3.14, locked, windows-latest)	3m 3s
checks / test (3.12, locked, ubuntu-latest)	48s
checks / test (3.14, lowest-direct, windows-latest)	2m 42s
checks / test (3.11, locked, windows-latest)	2m 35s
checks / test (3.13, locked, windows-latest)	2m 33s
checks / test (3.12, lowest-direct, windows-latest)	3m 52s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 8s
all-green	5s
	38m 15s

Provide feedback