feat: add support for Python 3.13 #4519

Job	Run time
mypy	1m 6s
slotscheck	25s
pyright	47s
Test server integration (uvicorn<0.27.0)	45s
Test Minimal Application with Base Dependencies	22s
Test server integration (uvicorn>=0.27.0)	45s
Test Minimal Pydantic 1 application	20s
validate	23s
test-platform-compat	0s
test (3.12) / test	3m 10s
test (3.10) / test	1m 50s
test (3.11) / test	1m 47s
test (3.13) / test	3m 5s
test (3.8) / test	2m 46s
test (3.9) / test	1m 57s
build-docs	2m 26s
codeql	0s
upload-test-coverage	0s
sonar	0s
	21m 54s

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