Add support for Node 16

[bennycode]

The "hexo-renderer-scss" package uses an old version of "node-sass" which is based on the very old "node-gyp" v3.8.0.

Node-gyp v3.8.0 uses Python 2 which reached end of life and the old "node-sass" does not support Node v16.

Please update "node-sass" to v6 in order to support Node v16 and a more recent version of node-gyp which works with Python 3.

References:

• https://github.com/sass/node-sass/releases/tag/v6.0.0 (Node 16 support in node-sass v6)
• https://www.npmjs.com/package/node-gyp/v/8.0.0 (Python 3 support in node-gyp v8)

[szhshp]

Same issue here

[albertnetymk]

I hit this problem as well. I managed to work around this issue by updating the node-sass version in package.json.