chore: securityFilterChain prometheus 접근 경로 허용

Author: yuseok0215

src/main/java/bitnagil/bitnagil_backend/global/config/SecurityConfig.java

@@ -63,6 +63,7 @@ public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
                 .requestMatchers(HttpMethod.OPTIONS, "/**").permitAll()
                 // GUEST 권한으로만 접근 가능한 경로
                 .requestMatchers("/api/v1/auth/agreements").hasRole("GUEST")
+                .requestMatchers("/actuator/**").permitAll() // prometheus config
                 // ONBAORDING 권한으로만 접근 가능한 경로
                 .requestMatchers("/api/v1/onboardings", "/api/v2/onboardings", "/api/v1/onboardings/routines", "/api/v2/onboardings/routines", "/api/v1/users/infos").hasAnyRole("USER", "ONBOARDING")
                 // USER 권한으로만 접근 가능한 경로(전체)