Update critic.py

Author: KRRT7

codeflash/result/critic.py

@@ -40,10 +40,8 @@ def speedup_critic(
     The noise floor is doubled when benchmarking on a (noisy) GitHub Action virtual instance, also we want to be more confident there.
     """
     noise_floor = 3 * MIN_IMPROVEMENT_THRESHOLD if original_code_runtime < 10000 else MIN_IMPROVEMENT_THRESHOLD
-    if not disable_gh_action_noise:
-        in_github_actions_mode = bool(env_utils.get_pr_number())
-        if in_github_actions_mode:
-            noise_floor = noise_floor * 2  # Increase the noise floor in GitHub Actions mode
+    if not disable_gh_action_noise and env_utils.is_ci():
+        noise_floor = noise_floor * 2  # Increase the noise floor in GitHub Actions mode
 
     perf_gain = performance_gain(
         original_runtime_ns=original_code_runtime, optimized_runtime_ns=candidate_result.best_test_runtime