Default to 1 trials for score_all for the workshop.

cl/hackathon/hackathon_solution.py

@@ -117,7 +117,7 @@ def init(self) -> Self:
         is_resulting_solution = "." in self.solution_id
         if not is_resulting_solution:
             if self.trial_count is None:
-                self.trial_count = str(10)
+                self.trial_count = str(1)
         else:
             self.inputs = self.get_inputs()
             self.outputs = self.get_outputs()