feat: integrate gapic generator change in googleapis (#220)

* 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. * feat: integrate gapic generator change in googleapis PiperOrigin-RevId: 308294748 Source-Author: Google APIs <noreply@google.com> Source-Date: Fri Apr 24 11:44:16 2020 -0700 Source-Repo: googleapis/googleapis Source-Sha: 28e76243c23cc282efbb288cb558c174e3e5e9ee Source-Link: googleapis/googleapis@28e7624

Author: yoshi-automation

README.md

@@ -20,7 +20,7 @@ If you are using Maven with [BOM][libraries-bom], add this to your pom.xml file
  <dependency>
  <groupId>com.google.cloud</groupId>
  <artifactId>libraries-bom</artifactId>
- <version>4.4.1</version>
+ <version>5.2.0</version>
  <type>pom</type>
  <scope>import</scope>
  </dependency>
@@ -41,7 +41,7 @@ If you are using Maven without BOM, add this to your dependencies:
 <dependency>
  <groupId>com.google.cloud</groupId>
  <artifactId>google-cloud-bigquerystorage</artifactId>
- <version>0.128.1-beta</version>
+ <version>0.130.0-beta</version>
 </dependency>
 
 ```

synth.metadata

@@ -11,39 +11,39 @@
  "git": {
  "name": ".",
  "remote": "https://github.com/googleapis/java-bigquerystorage.git",
- "sha": "a0db93e9d1f714a68dd11ef38c782099701dd068"
+ "sha": "b80386394f3082e9695712343f37afc4d29df76f"
  }
  },
  {
  "git": {
  "name": "googleapis",
  "remote": "https://github.com/googleapis/googleapis.git",
- "sha": "d741cd976975c745d0199987aff0e908b8352992",
- "internalRef": "305561906"
+ "sha": "28e76243c23cc282efbb288cb558c174e3e5e9ee",
+ "internalRef": "308294748"
  }
  },
  {
  "git": {
  "name": "googleapis",
  "remote": "https://github.com/googleapis/googleapis.git",
- "sha": "d741cd976975c745d0199987aff0e908b8352992",
- "internalRef": "305561906"
+ "sha": "28e76243c23cc282efbb288cb558c174e3e5e9ee",
+ "internalRef": "308294748"
  }
  },
  {
  "git": {
  "name": "googleapis",
  "remote": "https://github.com/googleapis/googleapis.git",
- "sha": "d741cd976975c745d0199987aff0e908b8352992",
- "internalRef": "305561906"
+ "sha": "28e76243c23cc282efbb288cb558c174e3e5e9ee",
+ "internalRef": "308294748"
  }
  },
  {
  "git": {
  "name": "googleapis",
  "remote": "https://github.com/googleapis/googleapis.git",
- "sha": "d741cd976975c745d0199987aff0e908b8352992",
- "internalRef": "305561906"
+ "sha": "28e76243c23cc282efbb288cb558c174e3e5e9ee",
+ "internalRef": "308294748"
  }
  },
  {