minor test renaming

src/test/java/com/fasterxml/jackson/databind/deser/JsonAnySetterFieldWithCreatorDeser4639Test.java → src/test/java/com/fasterxml/jackson/databind/deser/AnySetterFieldWithCreator4639Test.java

@@ -12,7 +12,7 @@
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
 // [databind#4639] 2.18.1 : regression when using @JsonAnySetter outside of @JsonCreator
-public class JsonAnySetterFieldWithCreatorDeser4639Test
+public class AnySetterFieldWithCreator4639Test
         extends DatabindTestUtil
 {