chore(examples): Typo #639

Job	Run time
test-development-versions-deps	49s
test-stable-versions (3.8, 20, 45)	1m 56s
test-latest-version	1m 43s
test-stable-versions (3.9, 20, 45)	50s
test-linter	9s
test-no-erdantic-version	1m 4s
test-stable-versions (3.9, 20, 53)	1m 17s
test-stable-versions (3.10, 20, 62)	1m 15s
test-stable-versions (3.10, 20, 70)	1m 13s
test-stable-versions (3.11, 20, 70)	1m 9s
test-stable-versions (3.11, 21, 71)	1m 23s
test-stable-versions (3.11, 22, 71)	1m 9s
test-stable-versions (3.11, 23, 71)	1m 29s
test-stable-versions (3.11, 24, 72)	1m 16s
test-stable-versions (3.12, 25, 72)	1m 43s
test-stable-versions (3.12, 26, 72)	1m 16s
	19m 41s

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