[xml/sgml-pkgs] epubcheck is marked for autoremoval from testing

[Debian testing autoremoval watch]

epubcheck 4.2.2-1 is marked for autoremoval from testing on 2020-07-20

It is affected by these RC bugs:
963444: epubcheck: FTBFS: [ERROR] /<<PKGBUILDDIR>>/src/main/java/com/adobe/epubcheck/opf/ValidationContext.java:[267,7] <anonymous com.adobe.epubcheck.opf.ValidationContext$ValidationContextPredicates$1> is not abstract and does not override abstract method test(com.adobe.epubcheck.opf.ValidationContext) in java.util.function.Predicate