misc: include attachments in grepped strings (#87783)

wcs/wf/register_comment.py

@@ -184,6 +184,7 @@ class RegisterCommenterWorkflowStatusItem(WorkflowStatusItem):
         yield from super().get_computed_strings()
         if not self.comment_template:
             yield self.comment
+        yield from (self.attachments or [])
 
     def migrate(self):
         changed = super().migrate()

wcs/wf/sendmail.py

@@ -238,6 +238,7 @@ class SendmailWorkflowStatusItem(WorkflowStatusItem):
             yield self.body
         if self.to:
             yield from self.to
+        yield from (self.attachments or [])
 
     def perform(self, formdata, ignore_i18n=False):
         if not self.to: