Bumped node-gyp version

[meszaros-lajos-gyorgy]

A new version of node-gyp was just released based on this comment: nodejs/node-gyp#1718 (comment)

[meszaros-lajos-gyorgy]

Should fix #2625.

[xzyfer]

Please check all the other duplicate closed PRs. The fix is much more complicated for us. We're on it.

[mikern12]

I mentioned this on this thread (1456ef2) , but I am still having an issue when I update node-gyp. I run npm install node-gyp and get the correct 4.0.0 package, but then I get an error that I something changed and I need to "Run npm rebuild node-sass to download the binding for your current environment." When I do this, it re-loads the 3.8.x version of node-gyp. Error below from the rebuild of node-sass:

gyp ERR! node -v v9.4.0
gyp ERR! node-gyp -v v3.8.0
gyp ERR! This is a bug in node-gyp.
gyp ERR! Try to update node-gyp and file an Issue if it does not help:
gyp ERR! https://github.com/nodejs/node-gyp/issues
Build failed with error code: 7
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! node-sass@4.11.0 postinstall: node scripts/build.js
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the node-sass@4.11.0 postinstall script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.