fix: do not import the whole google-gax from proto JS (#1553) (#16)

fix: use google-gax v3.3.0
Source-Link: googleapis/synthtool@c73d112
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-nodejs:latest@sha256:b15a6f06cc06dcffa11e1bebdf1a74b6775a134aac24a0f86f51ddf728eb373e

Author: gcf-owl-bot[bot]

packages/google-cloud-bigquery-migration/package.json

@@ -39,7 +39,7 @@
     "prelint": "cd samples; npm link ../; npm i"
   },
   "dependencies": {
-    "google-gax": "^3.1.3"
+    "google-gax": "^3.3.0"
   },
   "devDependencies": {
     "@types/mocha": "^9.0.0",