fix: typo in method update

src/py21cmfast/wrapper/outputs.py

@@ -131,7 +131,7 @@ def _inputs_compatible_with(self, other: OutputStruct | InputParameters) -> bool
         if isinstance(other, InputParameters):
             # Compare at the level required by this object only
             return getattr(self.inputs, f"_{self._compat_hash.name}_hash") == getattr(
-                other, f"{self._compat_hash.name}_hash"
+                other, f"_{self._compat_hash.name}_hash"
             )
 
         min_req = min(self._compat_hash.value, other._compat_hash.value)