Add node-gyp to peerDependencies

[daniel-brenot]

Environment details

• OS: Mac Os
• OS version: 11.6
• node-pty version:

Issue description

When trying to install dependencies for the theia IDE, I get the following message:

# Script name: install

Usage Error: Couldn't find a script name "node-gyp" in the top-level (used by @theia/node-pty@npm:0.9.0-theia.6). This typically happens because some package depends on "node-gyp" to build itself, but didn't list it in their dependencies. To fix that, please run "yarn add node-gyp" into your top-level workspace. You also can open an issue on the repository of the specified package to suggest them to use an optional peer dependency.

$ yarn run [--inspect] [--inspect-brk] [-T,--top-level] [-B,--binaries-only] <scriptName> ...```

## Issue Solution

Add node-gyp to the peer dependencies for the project

[valeriangalliat]

I'm running into this issue as well.

Looks like #567 introduced a regression by removing the node-gyp dependency.

[Tyriar]

@valeriangalliat it's not meant to be required now according to #567? cc @deepak1556, @rzhao271

[valeriangalliat]

Oh that's right. Looks like node-pty@0.10.1 (latest) on npm still has that install script in package.json somehow! https://socket.dev/npm/package/node-pty/files/0.10.1/package.json#L39 That would explain why this error still happens