chore: regenerate README (#284)

This PR was generated using Autosynth. 🌈


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

```
2021-01-12 20:12:49,195 synthtool [DEBUG] > Executing /root/.cache/synthtool/java-bigqueryconnection/.github/readme/synth.py.
On branch autosynth-readme
nothing to commit, working tree clean
2021-01-12 20:12:50,087 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/a7e481c4-2921-4682-ad3e-c9669c1b2b5d/targets

- [ ] To automatically regenerate this PR, check this box.

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

@@ -4,14 +4,14 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-bigqueryconnection.git",
-        "sha": "fc71f91e966dbb279b8c0dc9f899c3bb05b2bd4d"
+        "sha": "ac280253d3d30ef865268d611feee7aae545de7a"
       }
     },
     {
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "a3e990f3545dc8ccd384a75d20ce9cb185ca6a28"
+        "sha": "16ec872dd898d7de6e1822badfac32484b5d9031"
       }
     }
   ]

README.md

@@ -17,19 +17,19 @@ If you are using Maven, add this to your pom.xml file:
 <dependency>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-bigqueryconnection</artifactId>
-  <version>1.0.6</version>
+  <version>1.0.7</version>
 </dependency>
 
 ```
 
 If you are using Gradle without BOM, add this to your dependencies
 ```Groovy
-compile 'com.google.cloud:google-cloud-bigqueryconnection:1.0.6'
+compile 'com.google.cloud:google-cloud-bigqueryconnection:1.0.7'
 ```
 
 If you are using SBT, add this to your dependencies
 ```Scala
-libraryDependencies += "com.google.cloud" % "google-cloud-bigqueryconnection" % "1.0.6"
+libraryDependencies += "com.google.cloud" % "google-cloud-bigqueryconnection" % "1.0.7"
 ```
 
 ## Authentication