Add typing for FixtureRequest.param

For now, mark it as Any until #8073 is solved

Fixes #9514

AUTHORS

@@ -252,6 +252,7 @@ Nicholas Murphy
 Niclas Olofsson
 Nicolas Delaby
 Nikolay Kondratyev
+Nipunn Koorapati
 Olga Matoula
 Oleg Pidsadnyi
 Oleg Sushchenko

changelog/9514.bugfix.rst

@@ -0,0 +1 @@
+Type FixtureRequest.param as Any.

src/_pytest/fixtures.py

@@ -345,7 +345,7 @@ def reorder_items_atscope(
     return items_done
 
 
-def get_direct_param_fixture_func(request):
+def get_direct_param_fixture_func(request: "FixtureRequest") -> Any:
     return request.param
 
 
@@ -407,6 +407,7 @@ class FixtureRequest:
         self._arg2fixturedefs = fixtureinfo.name2fixturedefs.copy()
         self._arg2index: Dict[str, int] = {}
         self._fixturemanager: FixtureManager = pyfuncitem.session._fixturemanager
+        self.param: Any
 
     @property
     def scope(self) -> "_ScopeName":