Fix missing File line

library/open-liberty

@@ -23,6 +23,7 @@ File: Dockerfile.ubuntu.adoptopenjdk8
 Tags: 20.0.0.7-full-java8-openj9
 Directory: releases/20.0.0.7/full
 Architectures: amd64, ppc64le, s390x
+File: Dockerfile.ubuntu.adoptopenjdk8
 
 Tags: 20.0.0.6-kernel-java8-openj9
 Directory: releases/20.0.0.6/kernel