feat: add support for Python 3.13 #4521

Job	Run time
slotscheck	26s
mypy	1m 9s
pyright	47s
Test server integration (uvicorn<0.27.0)	41s
Test Minimal Application with Base Dependencies	13s
Test server integration (uvicorn>=0.27.0)	43s
Test Minimal Pydantic 1 application	17s
test-platform-compat	0s
validate	22s
test (3.10) / test	1m 52s
test (3.11) / test	1m 44s
test (3.12) / test	3m 5s
test (3.13) / test	2m 49s
test (3.8) / test	2m 49s
test (3.9) / test	1m 54s
build-docs	2m 22s
codeql	0s
upload-test-coverage	0s
sonar	0s
	21m 13s

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