Regenerated logging service (googleapis#893)

Regenerated java logging service and update pom to reference gax 0.0.9

Author: michaelbausor

gcloud-java-logging/baseline/src/main/java/com/google/gcloud/logging/spi/v2/ConfigServiceV2Api.java

@@ -20,7 +20,7 @@
     <dependency>
       <groupId>com.google.api</groupId>
       <artifactId>gax</artifactId>
-      <version>0.0.4</version>
+      <version>0.0.9</version>
     </dependency>
     <dependency>
       <groupId>com.google.api.grpc</groupId>