[docker] Synchronize Torch for Tune & RLlib (#11637)

ci/travis/determine_tests_to_run.py

@@ -107,7 +107,7 @@ if __name__ == "__main__":
                 RAY_CI_STREAMING_PYTHON_AFFECTED = 1
                 RAY_CI_DOC_AFFECTED = 1
                 if changed_file.startswith("python/setup.py") or re.match(
-                        "requirements.*\.txt", changed_file):
+                        ".*requirements.*\.txt", changed_file):
                     RAY_CI_PYTHON_DEPENDENCIES_AFFECTED = 1
             elif changed_file.startswith("java/"):
                 RAY_CI_JAVA_AFFECTED = 1

python/requirements_rllib.txt

@@ -1,7 +1,7 @@
 tensorflow-probability
 gast
 # Version requirement to match Tune
-torch>=1.5.0
+torch>=1.6.0
 # Version requirement to match Tune
 torchvision>=0.6.0
 smart_open