redhat_subscription: use CLI when using environments

changelogs/fragments/6319-redhat_subscription-fix-environment-parameter.yaml

@@ -0,0 +1,5 @@
+bugfixes:
+  - redhat_subscription - do not use D-Bus for registering when ``environment`` is specified,
+    so it possible to specify again the environment names for registering,
+    as the D-Bus APIs work only with IDs
+    (https://github.com/ansible-collections/community.general/pull/6319).

plugins/modules/redhat_subscription.py

@@ -461,8 +461,10 @@ def register(self, was_registered, username, password, token, auto_attach, activ
               * Exception - if any error occurs during the registration
         '''
         # There is no support for token-based registration in the D-Bus API
-        # of rhsm, so always use the CLI in that case.
-        if not token and self._can_connect_to_dbus():
+        # of rhsm, so always use the CLI in that case;
+        # also, since the specified environments are names, and the D-Bus APIs
+        # require IDs for the environments, use the CLI also in that case
+        if not token and not environment and self._can_connect_to_dbus():
             self._register_using_dbus(was_registered, username, password, auto_attach,
                                       activationkey, org_id, consumer_type,
                                       consumer_name, consumer_id,