chore(deps): update dependency com.google.cloud:google-cloud-bigquery…

…connection to v2 (#493)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-bigqueryconnection](https://togithub.com/googleapis/java-bigqueryconnection) | `1.2.0` -> `2.0.0` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-bigqueryconnection/2.0.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-bigqueryconnection/2.0.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-bigqueryconnection/2.0.0/compatibility-slim/1.2.0)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-bigqueryconnection/2.0.0/confidence-slim/1.2.0)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

<details>
<summary>googleapis/java-bigqueryconnection</summary>

### [`v2.0.0`](https://togithub.com/googleapis/java-bigqueryconnection/blob/master/CHANGELOG.md#&#8203;200-httpswwwgithubcomgoogleapisjava-bigqueryconnectioncomparev120v200-2021-08-05)

[Compare Source](https://togithub.com/googleapis/java-bigqueryconnection/compare/v1.2.0...v2.0.0)

##### ⚠ BREAKING CHANGES

-   release gapic-generator-java v2.0.0 ([#&#8203;489](https://togithub.com/googleapis/java-bigqueryconnection/issues/489))

##### Features

-   release gapic-generator-java v2.0.0 ([#&#8203;489](https://www.github.com/googleapis/java-bigqueryconnection/issues/489)) ([7ec2db3](https://www.github.com/googleapis/java-bigqueryconnection/commit/7ec2db39034ed8caecf0da9877ffe0014e2fd528))

##### Dependencies

-   update dependency com.google.cloud:google-cloud-shared-dependencies to v2 ([#&#8203;490](https://www.github.com/googleapis/java-bigqueryconnection/issues/490)) ([d869030](https://www.github.com/googleapis/java-bigqueryconnection/commit/d8690307f3992ed30d56a53a701a67dc60a117be))

</details>

---

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README.md

@@ -19,21 +19,21 @@ If you are using Maven, add this to your pom.xml file:
 <dependency>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-bigqueryconnection</artifactId>
-  <version>1.2.0</version>
+  <version>2.0.0</version>
 </dependency>
 
 ```
 
 If you are using Gradle without BOM, add this to your dependencies
 
 ```Groovy
-compile 'com.google.cloud:google-cloud-bigqueryconnection:1.2.0'
+compile 'com.google.cloud:google-cloud-bigqueryconnection:2.0.0'
 ```
 
 If you are using SBT, add this to your dependencies
 
 ```Scala
-libraryDependencies += "com.google.cloud" % "google-cloud-bigqueryconnection" % "1.2.0"
+libraryDependencies += "com.google.cloud" % "google-cloud-bigqueryconnection" % "2.0.0"
 ```
 
 ## Authentication

samples/install-without-bom/pom.xml

@@ -29,7 +29,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-bigqueryconnection</artifactId>
-      <version>1.2.0</version>
+      <version>2.0.0</version>
     </dependency>
     <!-- [END bigqueryconnection_install_without_bom] -->
 

samples/snippets/pom.xml

@@ -40,7 +40,7 @@
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-bigqueryconnection</artifactId>
       <!-- TODO: REMOVE VERSION SPECIFIED BELOW WHEN THE CLIENT GOES GA-->
-      <version>1.2.0</version>
+      <version>2.0.0</version>
     </dependency>
 
     <dependency>