feat: added min size of 12 to validation of characterConfig

src/main/java/uulm/teamname/marvelous/gamelibrary/config/CharacterConfig.java

@@ -3,6 +3,7 @@ package uulm.teamname.marvelous.gamelibrary.config;
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import jakarta.validation.Valid;
 import jakarta.validation.constraints.NotEmpty;
+import jakarta.validation.constraints.Size;
 
 import java.util.*;
 
@@ -13,6 +14,7 @@ public class CharacterConfig {
 
     @NotEmpty
     @Valid
+    @Size(min = 12, message = "has less than 12 characters")
     public CharacterProperties[] characters;
 
     @JsonIgnore private Map<String, CharacterProperties> propertyMap;