Merge branch 'develop' of https://github.com/prgrms-web-devcourse-final-project/WEB6_8_Bid_BE into fix#118

Author: Jiwoo-Seo

src/main/java/com/backend/global/security/SecurityConfig.java

@@ -36,6 +36,7 @@ public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Excepti
                         .requestMatchers("/billing.html", "/payments/**", "/toss/**").permitAll()
 
                         // 공개 API (기존)..
+
                         .requestMatchers("/", "/favicon.ico", "/h2-console/**", "/actuator/health").permitAll()
                         .requestMatchers("/api/v1/auth/**", "/swagger-ui/**", "/v3/api-docs/**",
                                 "/swagger-ui.html", "/webjars/**", "/notifications/**", "/ws/**",