fix: drop input timeout

`snyk test --json` may take a while to run, so having a timeout will end the snyk2spdx process early.

src/lib/get-input-data.ts

@@ -1,6 +1,5 @@
 export async function readInputFromStdin(): Promise<string> {
   return new Promise<string>((resolve, reject) => {
-    setTimeout(() => reject(new Error('No input detected')), 100);
     let jsonString = '';
     process.stdin.setEncoding('utf8');
     process.stdin.on('readable', () => {