Bump commons-io:commons-io from 2.14.0 to 2.15.0

Bumps commons-io:commons-io from 2.14.0 to 2.15.0.

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

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

heroku-api-integration-tests/pom.xml

@@ -84,7 +84,7 @@
         <dependency>
             <groupId>commons-io</groupId>
             <artifactId>commons-io</artifactId>
-            <version>2.14.0</version>
+            <version>2.15.0</version>
             <scope>test</scope>
         </dependency>
         <dependency>