fix: Update getAllCookie.js

[natpacket]

here puppeteer-proxy/src/routines/getAllCookies.js: we can see the code:

return page._client.send('Network.getAllCookies');

but there is no longer _client attribute with puppeteer 14.0.0. so，i do this:

return page._client().send('Network.getAllCookies');

it can be running well