Update package.json to latest sharp

[casret]

We were having problems installing this package in our environment because of sharp binary dependecies. Sharp has updated the package to pull in pre-built binaries which fixed that problem for us.

[xenova]

Hi there 👋 We are aware of this, and these updates will all be made to the v3 branch/PR (here). You can test it out with

npm install xenova/transformers.js#v3

Closing in favour of that PR. Also, a duplicate of #463