build

chore: replace confusable chars in tests #67

Job	Run time
tests-misc (generate-integration-files)	16s
tests-py (3.10)	41s
tests-misc (type)	25s
tests-misc (lint)	18s
tests-misc (build)	15s
tests-py (3.9)	35s
tests-py (pypy-3.10)	58s
tests-py (3.11)	35s
tests-py (pypy-3.11)	1m 6s
publish	-1s
	5m 8s

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