fix: Use correct focusNode and value for maxListLength test

Author: jeswr

shacl12-test-suite/tests/core/node/maxListLength-001.ttl

@@ -44,11 +44,12 @@ ex:list1
       sh:conforms "false"^^xsd:boolean ;
       sh:result [
           rdf:type sh:ValidationResult ;
-          sh:focusNode rdf:nil ;
+          sh:focusNode ex:list1 ;
           sh:resultMessage "List has length 3, but maximum allowed length is 2." ;
           sh:resultSeverity sh:Violation ;
           sh:sourceConstraintComponent sh:MaxListLengthConstraintComponent ;
           sh:sourceShape ex:ListShape ;
+          sh:value ex:list1 ;
         ] ;
       sh:result [
           rdf:type sh:ValidationResult ;