exclude websocket paths from spring security (#1523)

Author: goekay

src/main/java/de/rwth/idsg/steve/config/SecurityConfiguration.java

@@ -99,6 +99,7 @@ public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Excepti
                     .requestMatchers(
                         "/static/**",
                         CONFIG.getCxfMapping() + "/**",
+                        WebSocketConfiguration.PATH_INFIX + "**",
                         "/WEB-INF/views/**" // https://github.com/spring-projects/spring-security/issues/13285#issuecomment-1579097065
                     ).permitAll()
                     .requestMatchers(prefix + "/**").hasRole("ADMIN")