[JENKINS-57888, JENKINS-60821] - Winstone 5.7: Restore...

[JENKINS-57888, JENKINS-60821] -  Winstone 5.7: Restore java.util.logging.config.file property support and change the Jetty thread pull name

war/pom.xml

@@ -99,7 +99,7 @@ THE SOFTWARE.
       -->
       <groupId>org.jenkins-ci</groupId>
       <artifactId>winstone</artifactId>
-      <version>5.6</version>
+      <version>5.7</version>
       <scope>test</scope>
     </dependency>
     <dependency>