Add support for async generator injections #1285

Job	Run time
Run tests with different pydantic versions	3m 6s
Run tests (3.10)	1m 50s
Run tests with coverage	2m 48s
Run tests (3.9)	1m 52s
Run tests (3.8)	1m 52s
Run linters (flake8)	1m 27s
Run tests (3.13)	1m 55s
Run linters (pylint)	1m 38s
Run tests (3.11)	1m 49s
Run linters (mypy)	1m 43s
Run tests (3.12)	1m 51s
Run linters (pydocstyle)	1m 32s
	23m 23s

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