refactor(SecurityConfig): prometheus actuator 경로 화이트리스트에 추가

main/src/main/java/org/sopt/makers/crew/main/global/config/SecurityConfig.java

@@ -53,6 +53,7 @@ private String[] getAuthWhitelist() {
 			"/auth/v2",
 			"/auth/v2/**",
 			actuatorEndPoint + "/health",
+			actuatorEndPoint + "/prometheus",
 			"/internal/**"
 		};
 	}