feat: 직책 누락된 사항 추가 (DASOMBE-21)

Author: si-zero

src/main/java/dmu/dasom/api/domain/executive/enums/Team.java

@@ -9,7 +9,8 @@ public enum Team {
     PRESIDENT("president"),
     TECH("tech"),
     ACADEMIC("academic"),
-    MANAGEMENT("management")
+    MANAGEMENT("management"),
+    PR("pr")
     ;
 
     private String name;