chore(deps): update dependency com.google.cloud:google-cloud-bigquerystorage to v1.6.0 (#639)

Author: renovate-bot

samples/install-without-bom/pom.xml

@@ -30,7 +30,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-bigquerystorage</artifactId>
-      <version>1.5.6</version>
+      <version>1.6.0</version>
     </dependency>
     <!-- [END bigquerystorage_install_without_bom] -->