chore(internal): reduce proguard ci logging

Author: stainless-app[bot]

onebusaway-sdk-java-proguard-test/build.gradle.kts

@@ -37,7 +37,6 @@ val proguardJar by tasks.registering(proguard.gradle.ProGuardTask::class) {
     outjars(proguardJarPath)
     printmapping("${layout.buildDirectory.get()}/proguard-mapping.txt")
 
-    verbose()
     dontwarn()
 
     val javaHome = System.getProperty("java.home")