fix(deps): update dependency @google-cloud/paginator to ^0.2.0 (#560)

Author: renovate[bot]

handwritten/spanner/package.json

@@ -54,7 +54,7 @@
   },
   "dependencies": {
     "@google-cloud/common-grpc": "^0.10.0",
-    "@google-cloud/paginator": "^0.1.0",
+    "@google-cloud/paginator": "^0.2.0",
     "@google-cloud/precise-date": "^0.1.0",
     "@google-cloud/projectify": "^0.3.0",
     "@google-cloud/promisify": "^0.4.0",