Bump crate-ci/typos from 1.16.15 to 1.16.21 #56

Job	Run time
test (1.6, x64, ubuntu-latest)	1m 4s
test (1.6, x64, windows-latest)	14m 40s
test (1.6, x64, macOS-latest)	1m 10s
test (1.6, x86, ubuntu-latest)	5m 3s
test (1, x64, ubuntu-latest)	4m 59s
test (1, x64, windows-latest)	1m 33s
test (1, x64, macOS-latest)	4m 16s
test (1, x86, ubuntu-latest)	4m 46s
test (nightly, x64, ubuntu-latest)	7m 10s
test (nightly, x64, windows-latest)	10m 32s
test (nightly, x64, macOS-latest)	2m 41s
test (nightly, x86, ubuntu-latest)	5m 26s
	1h 3m 20s

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