fix: node-gyp is included in npm already

[DavidVujic]

Remove node-gyp from dependencies.

Description

node-gyp is already included in Node/npm and node-gyp-build uses that one, so does prebuildify (if there isn't any other version specified locally). See Q&A about it here.

Motivation and Context

Less dependencies, will produce less weight in the node_modules folder and will probably speed up the install process.

How Has This Been Tested?

npm test ✅
npm run test-components ✅
npm run test-integration ✅
CircleCI ✅

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• I have read the code of conduct.
• I have read the contributing guide.
• I have updated the documentation accordingly (if applicable).