Lock transitive dependencies in Gradle project

By default, only direct dependencies are locked.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=231821158

gradle/build.gradle

@@ -145,6 +145,8 @@ subprojects {
       // TODO(weiminyu): enable more dependency checks
   ]
 
+  dependencyLock.includeTransitives = true
+
   publishing {
     repositories {
       maven {