docs(v3): small fixes #4670

Job	Run time
mypy	1m 7s
validate	21s
Test server integration (uvicorn<0.27.0)	42s
pyright	40s
Test server integration (uvicorn>=0.27.0)	42s
slotscheck	24s
Test Minimal Application with Base Dependencies	21s
Test Minimal Pydantic 1 application	19s
test-platform-compat	0s
test (3.11) / test	42s
test (3.10) / test	42s
test (3.12) / test	42s
test (3.13) / test	24s
test (3.8) / test	34s
test (3.9) / test	41s
build-docs	1m 12s
upload-test-coverage	0s
codeql	0s
sonar	0s
	9m 33s

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