bump commons-compress

pom.xml

@@ -77,7 +77,7 @@
         <commons.beanutils.version>1.9.4</commons.beanutils.version>
         <commons.collections.version>3.2.2</commons.collections.version>
         <commons.collections4.version>4.4</commons.collections4.version>
-        <commons.compress.version>1.20</commons.compress.version>
+        <commons.compress.version>1.21</commons.compress.version>
         <commons.fileupload.version>1.4</commons.fileupload.version>
         <commons.httpclient.version>3.1</commons.httpclient.version>
         <commons.io.version>2.7</commons.io.version>