feat: add schema service to gapic (#494)

* 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.

* fix: switch pubsub/v1 retry config to grpc_service_config

PiperOrigin-RevId: 336174031

Source-Author: Google APIs <noreply@google.com>
Source-Date: Thu Oct 8 15:10:41 2020 -0700
Source-Repo: googleapis/googleapis
Source-Sha: bf79839b947d8b5c0f55516b963433faf23b54c4
Source-Link: googleapis/googleapis@bf79839

* feat: add schema service

PiperOrigin-RevId: 348038736

Source-Author: Google APIs <noreply@google.com>
Source-Date: Thu Dec 17 09:47:03 2020 -0800
Source-Repo: googleapis/googleapis
Source-Sha: 41d8fbfec9d4bc4a8859f78185713950913b4bf3
Source-Link: googleapis/googleapis@41d8fbf

.kokoro/build.sh

@@ -110,8 +110,8 @@ bash .kokoro/coerce_logs.sh
 
 if [[ "${ENABLE_BUILD_COP}" == "true" ]]
 then
-    chmod +x ${KOKORO_GFILE_DIR}/linux_amd64/flakybot
-    ${KOKORO_GFILE_DIR}/linux_amd64/flakybot -repo=googleapis/java-pubsub
+    chmod +x ${KOKORO_GFILE_DIR}/linux_amd64/buildcop
+    ${KOKORO_GFILE_DIR}/linux_amd64/buildcop -repo=googleapis/java-pubsub
 fi
 
 echo "exiting with ${RETURN_CODE}"