minor typo in migration

.changeset/new-peaches-melt.md

@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-scaffolder-backend': patch
+---
+
+Minor typo in migration

plugins/scaffolder-backend/migrations/20210120143715_init.js

@@ -77,7 +77,7 @@ exports.up = async function up(knex) {
 exports.down = async function down(knex) {
   if (knex.client.config.client !== 'sqlite3') {
     await knex.schema.alterTable('task_events', table => {
-      table.dropIndex([], 'ctask_events_task_id_idx');
+      table.dropIndex([], 'task_events_task_id_idx');
     });
   }
   await knex.schema.dropTable('task_events');