🐛 CORS 오류 수정

- 프리플라이트 CORS 오류를 수정하였습니다.

src/main/java/com/committers/snowflowerthon/committersserver/auth/config/SecurityConfig.java

@@ -17,6 +17,7 @@
 import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
 import org.springframework.web.cors.CorsConfiguration;
 import org.springframework.web.cors.CorsConfigurationSource;
+import org.springframework.web.cors.CorsUtils;
 import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
 
 import java.util.Collections;
@@ -80,9 +81,9 @@ protected SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
                     authorizeRequests
                             .requestMatchers(permitList).permitAll()
                             .requestMatchers(HttpMethod.OPTIONS, "/**").permitAll()
+                            .requestMatchers(CorsUtils::isPreFlightRequest).permitAll()
                             .anyRequest().hasAnyAuthority("ROLE_MEMBER");
                 })
-
                 .addFilterBefore(jwtFilter, UsernamePasswordAuthenticationFilter.class) // jwtFilter를 UsernamePasswordAuthenticationFilter 앞에 추가
                 .addFilterBefore(new JwtExceptionFilter(), JwtFilter.class) // JwtExceptionFilter를 JwtFilter 앞에 추가