Add pytest-lazyfixture stubs

stubs/pytest-lazyfixture/METADATA.toml

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+version = "0.6"

stubs/pytest-lazyfixture/pytest-lazy-fixture.pyi

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+from typing import Any, Iterable, List
+
+class LazyFixture:
+    name: str
+    def __init__(self, name: str) -> None: ...
+    def __eq__(self, other: LazyFixture) -> bool: ...
+
+def lazy_fixture(names: str | Iterable[str]) -> LazyFixture | List[LazyFixture]: ...
+def is_lazy_fixture(val: Any) -> bool: ...
+def pytest_configure() -> None: ...