Bump commons-io:commons-io from 2.15.1 to 2.21.0

Bumps [commons-io:commons-io](https://github.com/apache/commons-io) from 2.15.1 to 2.21.0.
- [Changelog](https://github.com/apache/commons-io/blob/master/RELEASE-NOTES.txt)
- [Commits](apache/commons-io@rel/commons-io-2.15.1...rel/commons-io-2.21.0)

---
updated-dependencies:
- dependency-name: commons-io:commons-io
  dependency-version: 2.21.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

pom.xml

@@ -172,7 +172,7 @@
       <dependency>
         <groupId>commons-io</groupId>
         <artifactId>commons-io</artifactId>
-        <version>2.15.1</version>
+        <version>2.21.0</version>
         <scope>test</scope>
       </dependency>
     </dependencies>