fix(deps): update dependency com.google.api.grpc:grpc-google-common-protos to v2.9.6 (#1810)

Author: renovate-bot

pom.xml

@@ -133,7 +133,7 @@
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-common-protos</artifactId>
-        <version>2.9.5</version>
+        <version>2.9.6</version>
       </dependency>
       <dependency>
         <groupId>io.grpc</groupId>