FIX: supports groups field in post_created_edited (#28773)

To achieve this this commit does the following:
- create a new `groups field, ideally we would have reused the existing group field, but many automations now have the expectation that this field will return a group id and not an array of group ids, which makes it a dangerous change
- alter the code in `post_created_edited` to use this new groups field and change the logic to use an array
- migrate the existing group fields post_created_edited automations to change name from `restricted_group` to `restricted_groups`, the component from `group` to `groups` and the metadata from `{"value": integer}` to `{"value": [integer]}`

plugins/automation/lib/discourse_automation/event_handlers.rb

@@ -54,15 +54,15 @@ module DiscourseAutomation
             next if (restricted_tags["value"] & topic.tags.map(&:name)).empty?
           end
 
-          restricted_group_id = automation.trigger_field("restricted_group")["value"]
-          if restricted_group_id.present?
+          restricted_group_ids = automation.trigger_field("restricted_groups")["value"]
+          if restricted_group_ids.present?
             next if !topic.private_message?
 
             target_group_ids = topic.allowed_groups.pluck(:id)
-            next if restricted_group_id != target_group_ids.first
+            next if (restricted_group_ids & target_group_ids).empty?
 
-            ignore_group_members = automation.trigger_field("ignore_group_members")
-            next if ignore_group_members["value"] && post.user.in_any_groups?([restricted_group_id])
+            ignore_group_members = automation.trigger_field("ignore_group_members")["value"]
+            next if ignore_group_members && post.user.in_any_groups?(restricted_group_ids)
           end
 
           ignore_automated = automation.trigger_field("ignore_automated")

plugins/automation/lib/discourse_automation/triggers/post_created_edited.rb

@@ -14,7 +14,7 @@ DiscourseAutomation::Triggerable.add(DiscourseAutomation::Triggers::POST_CREATED
         }
   field :restricted_category, component: :category
   field :restricted_tags, component: :tags
-  field :restricted_group, component: :group
+  field :restricted_groups, component: :groups
   field :ignore_automated, component: :boolean
   field :ignore_group_members, component: :boolean
   field :valid_trust_levels, component: :"trust-levels"