Use proper test scope for the test-utils dependency (#5623)

Author: sugmanue

core/protocols/aws-cbor-protocol/pom.xml

@@ -94,6 +94,7 @@
         <dependency>
             <groupId>software.amazon.awssdk</groupId>
             <artifactId>test-utils</artifactId>
+            <scope>test</scope>
         </dependency>
     </dependencies>