chore: regenerate README (#1386)

This PR was generated using Autosynth. 🌈 <details><summary>Log from Synthtool</summary> ``` 2021-06-23 15:34:43,339 synthtool [DEBUG] > Executing /root/.cache/synthtool/java-bigquery/.github/readme/synth.py. On branch autosynth-readme nothing to commit, working tree clean 2021-06-23 15:34:44,704 synthtool [DEBUG] > Wrote metadata to .github/readme/synth.metadata/synth.metadata. ``` </details> Full log will be available here: https://source.cloud.google.com/results/invocations/2bc88ac7-ef0e-481f-8300-def1cd51d674/targets - [ ] To automatically regenerate this PR, check this box. (May take up to 24 hours.)

Author: yoshi-automation

.github/readme/synth.metadata/synth.metadata

@@ -4,14 +4,14 @@
  "git": {
  "name": ".",
  "remote": "https://github.com/googleapis/java-bigquery.git",
- "sha": "b5a8f5b77694ac291145db926abd4f82a054ef50"
+ "sha": "d7bb8300f66edf6900c0ab27d046b0fb753a2222"
  }
  },
  {
  "git": {
  "name": "synthtool",
  "remote": "https://github.com/googleapis/synthtool.git",
- "sha": "8f76a885deaaf2fe234daeba4a8cc4d1b3de8086"
+ "sha": "9763f20e4b7bb1091082462b2f7970e965d0d414"
  }
  }
  ]

README.md

@@ -19,7 +19,7 @@ See https://github.com/GoogleCloudPlatform/cloud-opensource-java/wiki/The-Google
  <dependency>
  <groupId>com.google.cloud</groupId>
  <artifactId>libraries-bom</artifactId>
- <version>20.6.0</version>
+ <version>20.7.0</version>
  <type>pom</type>
  <scope>import</scope>
  </dependency>
@@ -47,7 +47,7 @@ If you are using Maven without BOM, add this to your dependencies:
 
 If you are using Gradle 5.x or later, add this to your dependencies
 ```Groovy
-implementation platform('com.google.cloud:libraries-bom:20.6.0')
+implementation platform('com.google.cloud:libraries-bom:20.7.0')
 
 compile 'com.google.cloud:google-cloud-bigquery'
 ```