build: fix compilation error

Author: jknack

modules/jooby-openapi/src/main/java/module-info.java

@@ -20,7 +20,6 @@
   requires io.pebbletemplates;
   requires jdk.jshell;
   requires com.google.common;
-  requires org.checkerframework.checker.qual;
   requires org.asciidoctor.asciidoctorj.api;
   requires jakarta.data;
   requires io.swagger.annotations;