chore(main): release 1.9.0 (#144)

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

Author: release-please[bot]

media/transcoder/package.json

@@ -14,7 +14,7 @@
     "test": "c8 mocha --timeout 600000 test/*.js"
   },
   "dependencies": {
-    "@google-cloud/video-transcoder": "^1.8.1"
+    "@google-cloud/video-transcoder": "^1.9.0"
   },
   "devDependencies": {
     "@google-cloud/storage": "^5.4.0",