[test][prefix][algorithms] Ensure max is bigger than threshold in db input loop evaluator

This makes the validate part more coherent.

beat/core/test/prefix/algorithms/user/db_input_loop_evaluator/1.py

@@ -56,6 +56,9 @@ class Algorithm:
             value = data["in_loop"].value
             self.max += value
 
+        if abs(self.max - self.threshold) <= 1:
+            self.max = self.threshold + 2
+
         return True
 
     def validate(self, result):