fix: update expected training time for frozenlake benchmark to 48 hours

Author: binary-husky

tests/bench/benchmark_frozenlake/benchmark_frozenlake.py

@@ -9,7 +9,7 @@
 class TestProbe(BenchmarkProbe):
     def __init__(self):
         # fmt: off
-        self.expected_train_time = 3600 * 24  # 24 hours budget for frozenlake easy benchmark
+        self.expected_train_time = 3600 * 48  # 48 hours budget for frozenlake easy benchmark
         self.begin_time = time.time()
         self.reward_array = []
         self.reward_expectation_avg_window = 20