chore: clean up and update renovate.json (#2665)

To remove unused package groupings and add "test" commit type

Source-Author: Stephanie Wang <stephaniewang526@users.noreply.github.com>
Source-Date: Tue Oct 20 18:31:45 2020 -0400
Source-Repo: googleapis/synthtool
Source-Sha: 6abb59097be84599a1d6091fe534a49e5c5cf948
Source-Link: googleapis/synthtool@6abb590

renovate.json

@@ -17,24 +17,6 @@
       ],
       "versionScheme": "docker"
     },
-    {
-      "packagePatterns": [
-        "^com.google.api:gax",
-        "^com.google.auth:",
-        "^com.google.cloud:google-cloud-core",
-        "^io.grpc:",
-        "^com.google.guava:"
-      ],
-      "groupName": "core dependencies"
-    },
-    {
-      "packagePatterns": [
-        "^com.google.http-client:",
-        "^com.google.oauth-client:",
-        "^com.google.api-client:"
-      ],
-      "groupName": "core transport dependencies"
-    },
     {
       "packagePatterns": [
         "*"
@@ -63,6 +45,16 @@
       "semanticCommitType": "chore",
       "semanticCommitScope": "deps"
     },
+    {
+      "packagePatterns": [
+        "^junit:junit",
+        "^com.google.truth:truth",
+        "^org.mockito:mockito-core",
+        "^org.objenesis:objenesis"
+      ],
+      "semanticCommitType": "test",
+      "semanticCommitScope": "deps"
+    },
     {
       "packagePatterns": [
         "^com.google.cloud:google-cloud-"
@@ -78,4 +70,4 @@
   ],
   "semanticCommits": true,
   "masterIssue": true
-}
+}

synth.metadata

@@ -4,14 +4,14 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-bigtable-hbase.git",
-        "sha": "f170143de55def1ca4887d5499dc0a3f96c9505b"
+        "sha": "49bb53401b558419f845abcf7bd791e82fee0767"
       }
     },
     {
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "0762e8ee2ec21cdfc4d82020b985a104feb0453b"
+        "sha": "6abb59097be84599a1d6091fe534a49e5c5cf948"
       }
     }
   ],