gym 0.25 still not in pip - use release branch instead

setup.py

@@ -24,7 +24,7 @@ setup(
     python_requires=">=3.7, <3.11",
     long_description_content_type="text/markdown",
     install_requires=[
-        'gym>=0.25',
+        'gym @ git+https://github.com/openai/gym.git@0.25.0',
         "numpy>=1.18.0"
     ],
     classifiers=[