fix: fixing typo in encoding name #3550

Job	Run time
bdist	3m 28s
lint	4m 3s
test (ubuntu-latest, 3.8)	5m 20s
test (ubuntu-latest, 3.9)	4m 36s
test (macos-latest, 3.8)	6m 28s
test (macos-latest, 3.9)	6m 10s
test (windows-latest, 3.8)	11m 5s
test (windows-latest, 3.9)	10m 7s
test (ubuntu-latest, 3.7, ~/.cache/pip)	4m 34s
test (macos-latest, 3.7.16, ~/Library/Caches/pip)	7m 50s
test (windows-latest, 3.7, ~\AppData\Local\pip\Cache)	9m 26s
sonar	0s
	1h 13m 7s

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