Update dependency commons-io:commons-io to v2.20.0 (#861)

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

Author: renovate[bot]

build.gradle

@@ -255,7 +255,7 @@ dependencies {
   implementation group: 'com.github.hmcts', name: 'service-auth-provider-java-client', version: '5.3.3'
   implementation group: 'com.launchdarkly', name: 'launchdarkly-java-server-sdk', version: '7.10.1'
   implementation group: 'com.nimbusds', name: 'nimbus-jose-jwt', version: '10.4'
-  implementation group: 'commons-io', name: 'commons-io', version: '2.19.0'
+  implementation group: 'commons-io', name: 'commons-io', version: '2.20.0'
   implementation group: 'commons-validator', name: 'commons-validator', version: '1.10.0'
   implementation group: 'info.solidsoft.gradle.pitest', name: 'gradle-pitest-plugin', version: '1.15.0'
   implementation group: 'io.github.openfeign.querydsl', name: 'querydsl-jpa', version:'6.12'