Add subscription annotations to Kogito operator

Add the following annotations to both Business automation operator and Kogito operator:

annotations:
  operators.openshift.io/valid-subscription: '["Red Hat Process Automation Manager", "Red Hat Decision Manager"]'
  
These two new annotations say that a user needs DM/PAM subscription to use BA/Kogito operators. We don't specify any pricing details like whether that subscription is already part of an bundle, whether it's with or without OpenShift subs, etc.