chore(deps): update dependency com.google.cloud:google-cloud-speech to v1.30.2 (#614)

Author: renovate-bot

samples/install-without-bom/pom.xml

@@ -29,7 +29,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-speech</artifactId>
-      <version>1.29.5</version>
+      <version>1.30.2</version>
     </dependency>
     <!-- [END speech_install_without_bom] -->
     <dependency>