Bump commons-io:commons-io from 2.19.0 to 2.21.0 (#1285)

Bumps [commons-io:commons-io](https://github.com/apache/commons-io) from 2.19.0 to 2.21.0.
- [Changelog](https://github.com/apache/commons-io/blob/master/RELEASE-NOTES.txt)
- [Commits](apache/commons-io@rel/commons-io-2.19.0...rel/commons-io-2.21.0)

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

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Author: dependabot[bot]

spring-cloud-openfeign-core/pom.xml

@@ -215,7 +215,7 @@
 		<dependency>
 			<groupId>commons-io</groupId>
 			<artifactId>commons-io</artifactId>
-			<version>2.19.0</version>
+			<version>2.21.0</version>
 			<scope>test</scope>
 		</dependency>
 		<dependency>