Update dependency commons-io:commons-io to v2.15.0 (#6266)

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

Author: renovate[bot]

checker/build.gradle

@@ -68,7 +68,7 @@ dependencies {
  // For the Resource Leak Checker's support for JavaEE.
  testImplementation 'javax.servlet:javax.servlet-api:4.0.1'
  // For the Resource Leak Checker's support for IOUtils.
- testImplementation 'commons-io:commons-io:2.14.0'
+ testImplementation 'commons-io:commons-io:2.15.0'
 
  testImplementation group: 'junit', name: 'junit', version: '4.13.2'
  testImplementation project(':framework-test')