fix: timeout error

[funny-cat-happy]

When the input is a link and the json file is very big, it will result in an error.

'This operation was aborted\n' +
    '    at download (D:\\openapi-typescript-codegen\\node_modules\\@apidevtools\\json-schema-ref-parser\\dist\\lib\\resolvers\\http.js:113:15)\n' +
    '    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)',

or socket hang up error.
This problem also occurs with the same type of tools. cyclosproject/ng-swagger-gen#217
So I add a timeout option to solve the problem.