[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

src/estimagic/decorators.py

@@ -218,7 +218,7 @@ def mark_minimizer(
 
     def decorator_mark_minimizer(func):
         try:
-            signature = inspect.signature(func)
+            inspect.signature(func)
         except TypeError:
             print("Test func.__signature__\n")
             print(func.__signature__)