chore: group com.google.api and com.google.http-client dependencies in RenovateBot config (#1464)

Grouping com.google.api dependencies. They are libraries generated by this repository.

![image](https://user-images.githubusercontent.com/28604/224108262-351e70ee-acda-4525-ba06-37cd89e1b077.png)

In addition to them, this PR groups com.google.http-client dependencies.

Author: suztomo

renovate.json

@@ -110,6 +110,18 @@
       ],
       "groupName": "Google Auth Library dependencies"
     },
+    {
+      "packagePatterns": [
+        "^com.google.api"
+      ],
+      "groupName": "Google API dependencies"
+    },
+    {
+      "packagePatterns": [
+        "^com.google.http-client"
+      ],
+      "groupName": "Google HTTP Client dependencies"
+    },
     {
       "packagePatterns": [
         "^io.opencensus"