feat: 기여자 컬럼 속성 추가 및 변경

Author: jwnnoh

src/main/java/land/leets/domain/contributor/domain/Contributor.java

@@ -29,7 +29,13 @@ public class Contributor {
     @Column(nullable = false)
     private Position position;
 
-    @Column(nullable = false)
+    @Column
     private String githubUrl;
+
+    @Column
+    private String profileUrl;
+
+    @Column
+    private String profile;
 }
 

src/main/java/land/leets/domain/contributor/domain/Position.java

@@ -8,7 +8,8 @@
 public enum Position {
     BACK_END("BackEnd"),
     FRONT_END("FrontEnd"),
-    DESIGN("Design");
+    BX_BI("BX/BI"),
+    UX_UI("UX/UI");
 
     private final String position;
 }