Bump node-gyp from 6.1.0 to 7.0.0

Bumps [node-gyp](https://github.com/nodejs/node-gyp) from 6.1.0 to 7.0.0.
- [Release notes](https://github.com/nodejs/node-gyp/releases)
- [Changelog](https://github.com/nodejs/node-gyp/blob/master/CHANGELOG.md)
- [Commits](https://github.com/nodejs/node-gyp/compare/v6.1.0...v7.0.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -29,7 +29,7 @@
     "html-loader": "0.5.5",
     "json-loader": "0.5.7",
     "node-abi": "^2.16.0",
-    "node-gyp": "^6.1.0",
+    "node-gyp": "^7.0.0",
     "node-sass": "^4.14.1",
     "npmlog": "4.1.2",
     "npx": "^10.2.0",