Fixing return value type hint in __call__

Author: S-Erik

src/tequila/optimizers/optimizer_excsolve.py

@@ -83,7 +83,7 @@ def __call__(
         initial_values: typing.Dict[Variable, numbers.Real] = None,
         *args,
         **kwargs,
-    ) -> scipy.optimize.OptimizeResult:
+    ) -> SciPyResults:
         objective = objective.contract()
         infostring = "{:15} : {}\n".format("Method", "ExcitationSolve")
         infostring += "{:15} : {} expectationvalues\n".format("Objective", objective.count_expectationvalues())