build(ci): exclude reset method from coverage

Author: kozistr

pytorch_optimizer/base/optimizer.py

@@ -276,5 +276,5 @@ def validate_nus(self, nus: Union[float, Tuple[float, float]]):
             self.validate_range(nus[1], 'nu2', 0.0, 1.0, range_type='[]')
 
     @abstractmethod
-    def reset(self):
+    def reset(self):  # pragma: no cover
         raise NotImplementedError