change name from BaselineSolver to baseline

The combinatorial auction test did never create an alert because the
name of the baseline solver was written incorrectly. The name is fixed
now.

src/monitoring_tests/combinatorial_auction_surplus_test.py

@@ -96,7 +96,7 @@ def run_combinatorial_auction(self, competition_data: dict[str, Any]) -> bool:
                 f"Absolute difference: {float(a_abs_eth):.5f}ETH",
             ]
         )
-        if "BaselineSolver" in solutions_filtering_winner:
+        if "baseline" in solutions_filtering_winner:
             self.alert(log_output)
         elif (
             a_abs_eth > SURPLUS_ABSOLUTE_DEVIATION_ETH / 10