test(deps): update dependency io.github.classgraph:classgraph to v4.8.181 (googleapis#3195)

Author: renovate-bot

google-cloud-storage/pom.xml

@@ -331,7 +331,7 @@
     <dependency>
       <groupId>io.github.classgraph</groupId>
       <artifactId>classgraph</artifactId>
-      <version>4.8.180</version>
+      <version>4.8.181</version>
       <scope>test</scope>
     </dependency>
     <dependency>