Update sb3_contrib dependency condition

Install dependencies for development on macOS with Intel x86_64 Chip.

Author: qinhanlei

requirements-freqai-rl.txt

@@ -6,6 +6,6 @@ torch==2.8.0; sys_platform != 'darwin' or platform_machine != 'x86_64'
 gymnasium==0.29.1
 # SB3 >=2.5.0 depends on torch 2.3.0 - which implies it dropped support x86 macos
 stable_baselines3==2.7.0; sys_platform != 'darwin' or platform_machine != 'x86_64'
-sb3_contrib>=2.2.1
+sb3_contrib>=2.2.1; sys_platform != 'darwin' or platform_machine != 'x86_64'
 # Progress bar for stable-baselines3 and sb3-contrib
 tqdm==4.67.1