Bump kynan/nbstripout from 0.8.0 to 0.8.1 #93

Job	Run time
pre-commit	19s
type-checking	19s
docs-build	4m 54s
tests 3.12 [ubuntu-latest]	1m 4s
tests 3.11 [ubuntu-latest]	1m 1s
tests 3.10 [ubuntu-latest]	1m 6s
tests 3.12 [windows-latest]	1m 57s
tests 3.11 [windows-latest]	2m 1s
tests 3.10 [windows-latest]	2m 11s
tests 3.12 [macos-latest]	1m 10s
tests 3.11 [macos-latest]	1m 0s
tests 3.10 [macos-latest]	55s
tests 3.12 [macos-13]	2m 16s
tests 3.11 [macos-13]	1m 34s
tests 3.10 [macos-13]	1m 50s
tests-extended 3.12 [ubuntu-latest]	1m 9s
coverage	21s
	25m 7s

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