chore(deps): update dependency google-auth-library to v7.3.0 (GoogleCloudPlatform#110)

Author: renovate-bot

grpc-gcp/package.json

@@ -37,7 +37,7 @@
   "devDependencies": {
     "@grpc/proto-loader": "0.6.2",
     "c8": "7.7.2",
-    "google-auth-library": "7.1.0",
+    "google-auth-library": "7.3.0",
     "google-gax": "2.14.1",
     "google-protobuf": "3.17.1",
     "grpc": "1.24.10",