feat: add support for Python 3.13 #4540

Job	Run time
mypy	1m 2s
pyright	39s
Test server integration (uvicorn<0.27.0)	43s
slotscheck	24s
validate	18s
Test server integration (uvicorn>=0.27.0)	39s
Test Minimal Application with Base Dependencies	14s
Test Minimal Pydantic 1 application	16s
test-platform-compat	0s
test (3.10) / test	1m 17s
test (3.11) / test	1m 18s
test (3.12) / test	1m 18s
test (3.13) / test	1m 1s
test (3.8) / test	1m 17s
test (3.9) / test	1m 16s
build-docs	2m 34s
codeql	0s
upload-test-coverage	0s
sonar	0s
	14m 16s

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