chore: regenerate README (#464)

This PR was generated using Autosynth. 🌈


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

```
2021-07-08 11:38:20,639 synthtool [DEBUG] > Executing /root/.cache/synthtool/java-bigqueryconnection/.github/readme/synth.py.
On branch autosynth-readme
nothing to commit, working tree clean
2021-07-08 11:38:21,888 synthtool [DEBUG] > Wrote metadata to .github/readme/synth.metadata/synth.metadata.

```
</details>

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Author: yoshi-automation

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

@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-bigqueryconnection.git",
-        "sha": "ddd31d26ba8a95ea6a5189c7815bf23577ffbb2a"
+        "sha": "c7b656bbd4758734ba3a78cbf6059524aadaf291"
       }
     },
     {

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>1.1.4</version>
+  <version>1.1.5</version>
 </dependency>
 
 ```
 
 If you are using Gradle without BOM, add this to your dependencies
 ```Groovy
-compile 'com.google.cloud:google-cloud-bigqueryconnection:1.1.4'
+compile 'com.google.cloud:google-cloud-bigqueryconnection:1.1.5'
 ```
 
 If you are using SBT, add this to your dependencies
 ```Scala
-libraryDependencies += "com.google.cloud" % "google-cloud-bigqueryconnection" % "1.1.4"
+libraryDependencies += "com.google.cloud" % "google-cloud-bigqueryconnection" % "1.1.5"
 ```
 
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