Use Annotated for DI in FastAPI examples (#853) #1173

Job	Run time
Run tests on legacy versions (3.7)	2m 18s
Run tests with coverage	3m 7s
Run tests with different pydantic versions	3m 45s
Run linters (flake8)	1m 44s
Run linters (pydocstyle)	1m 45s
Run tests (3.8)	2m 9s
Run linters (mypy)	1m 59s
Run tests (3.9)	2m 6s
Run linters (pylint)	1m 56s
Run tests (3.10)	2m 15s
Run tests (3.11)	2m 3s
Run tests (3.12)	2m 6s
Run tests (3.13)	2m 9s
	29m 22s

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