[FLINK-36473] use appropriate scope

Author: SamBarker

flink-autoscaler/pom.xml

@@ -111,6 +111,7 @@ under the License.
             <groupId>org.awaitility</groupId>
             <artifactId>awaitility</artifactId>
             <version>${awaitility.version}</version>
+            <scope>test</scope>
         </dependency>
 
     </dependencies>