fix: change memberships variables

tasks/main.yml

@@ -87,8 +87,8 @@
 
 - name: manage role membership
   community.postgresql.postgresql_membership:
-    groups: '{{ item.key }}'
-    target_roles: '{{ item.value.roles }}'
+    groups: '{{ item.value.groups }}'
+    target_roles: '{{ item.key }}'
     state: '{{ item.value.state | default("present") }}'
   loop: '{{ postgresql_role_memberships | dict2items }}'
   loop_control: