fix: bus/apply/**에 admin 권한 추가

dodam-api/src/main/java/b1nd/dodamapi/security/SecurityConfig.java

@@ -8,12 +8,10 @@
 import lombok.RequiredArgsConstructor;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
-import org.springframework.http.HttpStatus;
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
 import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
 import org.springframework.security.web.SecurityFilterChain;
 import org.springframework.security.web.access.intercept.AuthorizationFilter;
-import org.springframework.security.web.authentication.HttpStatusEntryPoint;
 import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
 import org.springframework.web.cors.CorsConfiguration;
 import org.springframework.web.cors.CorsConfigurationSource;
@@ -69,7 +67,7 @@ public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
  .requestMatchers("/wakeup-song/**").permitAll()
 
  .requestMatchers(GET, "/bus").permitAll()
- .requestMatchers("/bus/apply/**").hasRole(STUDENT)
+ .requestMatchers("/bus/apply/**").hasAnyRole(STUDENT, ADMIN)
  .requestMatchers("/bus/**").hasRole(TEACHER)
 
  .requestMatchers(POST, "/night-study").hasRole(STUDENT)