Bump commons-io from 1.2 to 2.7 in /core

Bumps commons-io from 1.2 to 2.7.

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

core/pom.xml

@@ -376,7 +376,7 @@
         <dependency>
             <groupId>commons-io</groupId>
             <artifactId>commons-io</artifactId>
-            <version>1.2</version>
+            <version>2.7</version>
         </dependency>
         <dependency>
             <groupId>dom4j</groupId>