Alternative fix

Author: youtux

.github/workflows/main.yml

@@ -36,7 +36,7 @@ jobs:
         include:
           - python-version: "3.9"
             toxfactor: py3.9
-            ignore-typecheck-outcome: false
+            ignore-typecheck-outcome: true
             ignore-test-outcome: false
           - python-version: "3.10"
             toxfactor: py3.10

pytest_factoryboy/fixture.py

@@ -260,7 +260,7 @@ def inject_into_caller(name: str, function: Callable[..., Any], locals_: Box[dic
     # Therefore, we can just check for __qualname__ to figure out if we are in a class, and apply the @staticmethod.
     is_class_or_function = "__qualname__" in locals_.value
     if is_class_or_function:
-        function = staticmethod(function)  # type: ignore[assignment]  # python 3.9 quirk
+        function = staticmethod(function)
 
     locals_.value[name] = function