fix : 자기소개 업데이트시 필드값을 인식못하는 문제 수정

tht-apis/src/main/java/com/tht/thtapis/facade/user/request/ModifiedIntroductionRequest.java

@@ -0,0 +1,6 @@
+package com.tht.thtapis.facade.user.request;
+
+public record ModifiedIntroductionRequest(
+    String introduction
+) {
+}

tht-apis/src/main/java/com/tht/thtapis/ui/UserController.java

@@ -111,9 +111,9 @@ public ResponseEntity<TokenDto> updateNickName(
     @PatchMapping("/user/introduction")
     public ResponseEntity<Object> updateSelfIntroduce(
             @AuthenticationPrincipal final User user,
-            @RequestBody final String introduction) {
+            @RequestBody final ModifiedIntroductionRequest request) {
 
-        userFacade.updateIntroduction(user, introduction);
+        userFacade.updateIntroduction(user, request.introduction());
         return ResponseEntity.ok().build();
     }