Fix BootstrapTimelineService crashing when bootstrapped accounts are invalid (#12037)

* Add test to handle suspended and missing users in BootstrapTimelineService

* Fix BootstrapTimelineService crashing when bootstrapped accounts are invalid

app/services/bootstrap_timeline_service.rb

@@ -17,7 +17,11 @@ class BootstrapTimelineService < BaseService
 
   def autofollow_bootstrap_timeline_accounts!
     bootstrap_timeline_accounts.each do |target_account|
-      FollowService.new.call(@source_account, target_account)
+      begin
+        FollowService.new.call(@source_account, target_account)
+      rescue ActiveRecord::RecordNotFound, Mastodon::NotPermittedError
+        nil
+      end
     end
   end
 
@@ -40,7 +44,9 @@ class BootstrapTimelineService < BaseService
 
   def local_unlocked_accounts(usernames)
     Account.local
+           .without_suspended
            .where(username: usernames)
            .where(locked: false)
+           .where(moved_to_account_id: nil)
   end
 end