chore: regenerate README (#1397)

This PR was generated using Autosynth. 🌈


<details><summary>Log from Synthtool</summary>

```
2021-06-28 18:56:01,685 synthtool [DEBUG] > Executing /root/.cache/synthtool/java-bigquery/.github/readme/synth.py.
On branch autosynth-readme
nothing to commit, working tree clean
2021-06-28 18:56:03,973 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/cf31ae60-53d3-48a6-b743-2942c506906b/targets

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Author: yoshi-automation

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

@@ -4,14 +4,14 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-bigquery.git",
-        "sha": "05662f3d96ee26d74b8524f1b84e0bd1ec5d0716"
+        "sha": "d783292f4bd2d971235d8afa6318976856529cb5"
       }
     },
     {
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "e934b93402284f834b510ebbf421864e881dce02"
+        "sha": "1f9ceba741b6b4a60ce09ab98423e941f5bd47f2"
       }
     }
   ]

README.md

@@ -53,12 +53,12 @@ compile 'com.google.cloud:google-cloud-bigquery'
 ```
 If you are using Gradle without BOM, add this to your dependencies
 ```Groovy
-compile 'com.google.cloud:google-cloud-bigquery:1.134.0'
+compile 'com.google.cloud:google-cloud-bigquery:1.134.1'
 ```
 
 If you are using SBT, add this to your dependencies
 ```Scala
-libraryDependencies += "com.google.cloud" % "google-cloud-bigquery" % "1.134.0"
+libraryDependencies += "com.google.cloud" % "google-cloud-bigquery" % "1.134.1"
 ```
 
 ## Authentication