chore(main): release 2.1.1 (#86)

* chore(main): release 2.1.1

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>
Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

storagetransfer/package.json

@@ -13,7 +13,7 @@
     "test": "c8 mocha ---parallel --timeout 600000 test/*.test.js"
   },
   "dependencies": {
-    "@google-cloud/storage-transfer": "^2.1.0"
+    "@google-cloud/storage-transfer": "^2.1.1"
   },
   "devDependencies": {
     "@google-cloud/storage": "^6.0.0",