Update SecurityConfig.java

Author: Ahnyeongjun

src/main/java/com/swyp/backend/global/config/SecurityConfig.java

@@ -6,6 +6,9 @@
 import lombok.RequiredArgsConstructor;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+
+import org.springframework.http.HttpMethod;
+import org.springframework.security.config.Customizer.withDefaults;
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
 import org.springframework.security.config.http.SessionCreationPolicy;
 import org.springframework.security.web.SecurityFilterChain;