SONARPY-839 Upgrade Apache commons-io dependency to 2.8 (#900)

Author: andrea-guarino-sonarsource

pom.xml

@@ -82,7 +82,7 @@
     <skip.its>true</skip.its>
 
     <!-- versions -->
-    <commons.io.version>2.7</commons.io.version>
+    <commons.io.version>2.8.0</commons.io.version>
     <commons.lang.version>2.6</commons.lang.version>
     <assertj-core.version>3.6.1</assertj-core.version>
     <junit.version>4.13.1</junit.version>