Fix import from CollaboratorsHandler.js to CollaboratorsHandler.mjs (#29863)

GitOrigin-RevId: 35f7fd558a127c094b65104e0775c67dca4f96f6

services/web/scripts/convert_track_changes_to_explicit_format.mjs

@@ -2,7 +2,7 @@
 import { db } from '../app/src/infrastructure/mongodb.js'
 import { batchedUpdate } from '@overleaf/mongo-utils/batchedUpdate.js'
 import { scriptRunner } from './lib/ScriptRunner.mjs'
-import CollaboratorsHandler from '../app/src/Features/Collaborators/CollaboratorsHandler.js'
+import CollaboratorsHandler from '../app/src/Features/Collaborators/CollaboratorsHandler.mjs'
 
 const DRY_RUN = !process.argv.includes('--dry-run=false')
 const DEBUG = process.argv.includes('--debug=true')