Checkstyle fixes (#678)

checkstyle fixes

Signed-off-by: David Kral <david.k.kral@oracle.com>

Author: Verdent

src/main/java/org/eclipse/yasson/internal/serializer/MapSerializer.java

@@ -93,8 +93,7 @@ public void serialize(Object value, JsonGenerator generator, SerializationContex
                         if (TypeSerializers.hasCustomJsonbSerializer(keyClass, context.getJsonbContext())) {
                             suitable = false;
                             break;
-                        }
-                        else {
+                        } else {
                             continue;
                         }
                     }

src/main/java/org/eclipse/yasson/internal/serializer/types/TypeSerializers.java

@@ -53,8 +53,8 @@
 import jakarta.json.JsonString;
 import jakarta.json.JsonValue;
 import jakarta.json.bind.JsonbException;
-
 import jakarta.json.bind.serializer.JsonbSerializer;
+
 import org.eclipse.yasson.internal.JsonbContext;
 import org.eclipse.yasson.internal.model.customization.Customization;
 import org.eclipse.yasson.internal.serializer.ModelSerializer;