Merge pull request #69 from http4k/auto/6.30.1.0

Auto-upgrade to 6.30.1.0

Author: daviddenton

gradle.properties

@@ -1,4 +1,4 @@
 org.gradle.jvmargs=-Xmx8g -Dkotlin.daemon.jvm.options=-Xmx6g
 org.gradle.caching=true
 org.gradle.parallel=false
-http4kVersion=6.28.0.0
+http4kVersion=6.30.1.0