등록 post로 수정

src/main/java/com/kamco/cd/kamcoback/gukyuin/GukYuinApiController.java

@@ -37,7 +37,9 @@ public class GukYuinApiController {
 
   private final GukYuinApiService gukYuinApiService;
 
-  /** 탐지결과 등록 */
+  /**
+   * 탐지결과 등록
+   */
   @Operation(summary = "탐지결과 등록", description = "탐지결과 등록")
   @ApiResponses(
     value = {
@@ -242,7 +244,7 @@ public class GukYuinApiController {
   }
 
   @Operation(summary = "국유in연동 등록", description = "국유in연동 등록")
-  @GetMapping("/mast/reg/{uuid}")
+  @PostMapping("/mast/reg/{uuid}")
   public ApiResponseDto<ResponseObj> connectChnMastRegist(
     @Parameter(description = "uuid", example = "7a593d0e-76a8-4b50-8978-9af1fbe871af")
     @PathVariable