ZK loads vulnerable commons-io transitively

Steps to Reproduce

Load zk.jar 9.6.1 through maven

Current Result

 transitively loads commons-fileupload 1.4

commons-fileupload transitively loads commons-io 2.2

Expected Result

 Doesn't load vulnerable dependencies, update to commons-io 11 if no compatibility issues

Debug Information

Commons-io is vulnerable up to 2.7

https://mvnrepository.com/artifact/commons-io/commons-io

CKEZ package also loads commons-fileupload 1.4, but specifies commons-io 2.7

https://github.com/zkoss/zkckeditor/blob/master/ckez/pom.xml

Workaround

Set version manually for commons-io in pom file: 

		<dependency>
			<groupId>commons-io</groupId>
			<artifactId>commons-io</artifactId>
			<version>2.11.0</version>
		</dependency>