Update dependency commons-io:commons-io to v2.21.0 (#11)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

pom.xml

@@ -82,7 +82,7 @@
       <groupId>commons-io</groupId>
       <artifactId>commons-io</artifactId>
       <scope>compile</scope>
-      <version>2.20.0</version>
+      <version>2.21.0</version>
     </dependency>
 
     <!-- Testing -->