build(java): update renovate config to mark conformance tests as a test commit type (#1398)

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Source-Link: googleapis/synthtool@9a238a0

Author: yoshi-automation

renovate.json

@@ -50,7 +50,8 @@
         "^junit:junit",
         "^com.google.truth:truth",
         "^org.mockito:mockito-core",
-        "^org.objenesis:objenesis"
+        "^org.objenesis:objenesis",
+        "^com.google.cloud:google-cloud-conformance-tests"
       ],
       "semanticCommitType": "test",
       "semanticCommitScope": "deps"

synth.metadata

@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-spanner.git",
-        "sha": "51a4c248b9681fced2d8118f7180f8a61049e2de"
+        "sha": "d28d8a1d710b1cd47ef3b2ca1fa87750a007b5cf"
       }
     },
     {
@@ -19,7 +19,7 @@
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "e2aa5bcc3356d9e3b8b53de3b5c86226447d3a22"
+        "sha": "9a238a0623879c3de129a376c6085d4a862f6eb9"
       }
     }
   ],