chore: Java 스타일 수정

Author: github-actions

backend/src/main/java/io/f1/backend/global/config/CorsConfig.java

@@ -16,7 +16,7 @@ public CorsConfigurationSource corsConfigurationSource() {
         config.addAllowedOrigin("http://localhost:3000");
         config.addAllowedOrigin("https://brainrace.duckdns.org");
         config.addAllowedOrigin("https://api-brainrace.duckdns.org");
-		config.addAllowedOrigin("https://dev-brainrace.duckdns.org");
+        config.addAllowedOrigin("https://dev-brainrace.duckdns.org");
 
         config.addAllowedHeader("*");
         config.addAllowedMethod("*");