Support for requests that return gzip

[tkafka]

Some requests, like salesReports API don't return json, but gzip - node-app-store-connect-api currently fails on these, as contentType is application/a-gzip, and so the control pass to this line:

node-app-store-connect-api/index.mjs

Line 137 in 89e8682

return text;

There, the gzip binary is returned as text, and in read function, the destructuring assigment doesn't find anything to destructure and returns undefined.

[tkafka]

I've modified the code, like this:

import { gunzipSync } from 'node:zlib'

if (contentType === 'application/a-gzip') {
    const arrayBuffer = await response.arrayBuffer();
    const decoded = gunzipSync(new Buffer.from(arrayBuffer)).toString()
    text = decoded
} else {
    text = await response.text();
} 

... and to my surprise, I found that the report is not json, but TSV (tab separated values).

So, the module will have to add another output mode, where it returns the TSV.