Merge "Exclude Taskflow 6.0.0 from global requirements"

Author: Zuul

global-requirements.txt

@@ -390,7 +390,7 @@ pbr!=2.1.0  # Apache-2.0
 sherlock  # MIT
 stevedore!=3.0.0  # Apache-2.0
 tap-as-a-service  # Apache-2.0
-taskflow  # Apache-2.0
+taskflow!=6.0.0  # Apache-2.0
 tempest  # Apache-2.0
 tooz  # Apache-2.0
 tosca-parser  # Apache-2.0