chore: re-generated to pick up changes from synthtool (#978)

* changes without context

        autosynth cannot find the source of changes triggered by earlier changes in this
        repository, or by version upgrades to tools such as linters.

* ci: removing linkage-monitor from the required checks

Source-Author: Tomo Suzuki <[email protected]>
Source-Date: Wed Aug 25 13:18:10 2021 -0400
Source-Repo: googleapis/synthtool
Source-Sha: e2aa5bcc3356d9e3b8b53de3b5c86226447d3a22
Source-Link: googleapis/synthtool@e2aa5bc

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

Source-Author: kolea2 <[email protected]>
Source-Date: Tue Aug 31 14:35:19 2021 -0400
Source-Repo: googleapis/synthtool
Source-Sha: 9a238a0623879c3de129a376c6085d4a862f6eb9
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-bigtable.git",
-        "sha": "09b31bd9032dc36071cb8d32fc5cb6d4d85878e1"
+        "sha": "392432daa7569cd73a8635ccc078c78f59513e3b"
       }
     },
     {
@@ -19,7 +19,7 @@
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "63cff634aabb85854caa511c5837ea6b45f42b4b"
+        "sha": "9a238a0623879c3de129a376c6085d4a862f6eb9"
       }
     }
   ],