fix(deps): update dependency gaxios to v4

Author: renovate-bot

package.json

@@ -60,7 +60,7 @@
     "date-and-time": "^0.14.0",
     "duplexify": "^4.0.0",
     "extend": "^3.0.2",
-    "gaxios": "^3.0.0",
+    "gaxios": "^4.0.0",
     "gcs-resumable-upload": "^3.1.0",
     "get-stream": "^6.0.0",
     "hash-stream-validation": "^0.2.2",