refactor(ApplicationConfig): 비밀번호를 암호화할 때, 기존에 있던 passwordEncoder 빈을 사용

src/main/java/com/connect/accountApp/global/config/ApplicationConfig.java

@@ -28,7 +28,7 @@ public UserDetailsService userDetailsService() {
 
       return org.springframework.security.core.userdetails.User.builder()
         .username(user.getUserEmail())
-        .password(new BCryptPasswordEncoder().encode(user.getUserPassword()))
+        .password(passwordEncoder().encode(user.getUserPassword()))
         .authorities(new SimpleGrantedAuthority(user.getRole().name()))
         .build();
     };