chore(java-pubsub): modernize submodule pom.xml

Author: chingor13

java-pubsub/proto-google-cloud-pubsub-v1/pom.xml

@@ -20,10 +20,12 @@
     <dependency>
       <groupId>com.google.api.grpc</groupId>
       <artifactId>proto-google-common-protos</artifactId>
+      <version>2.67.1-SNAPSHOT</version><!-- {x-version-update:proto-google-common-protos:current} -->
     </dependency>
     <dependency>
       <groupId>com.google.api</groupId>
       <artifactId>api-common</artifactId>
+      <version>2.59.1-SNAPSHOT</version><!-- {x-version-update:api-common:current} -->
     </dependency>
     <dependency>
       <groupId>com.google.guava</groupId>