Update dependency commons-io:commons-io to v2.8.0

Author: renovate-bot

build.gradle

@@ -48,7 +48,7 @@ dependencies {
     testRuntime group: 'org.junit.jupiter', name: 'junit-jupiter-engine', version: '5.7.0'
 
     // For turning InputStream to String
-    testCompile group: 'commons-io', name: 'commons-io', version: '2.6'
+    testCompile group: 'commons-io', name: 'commons-io', version: '2.8.0'
 
     // For reading the demo vapid keypair from a pem file
     testCompile group: 'org.bouncycastle', name: 'bcpkix-jdk15on', version: '1.64'