Merge pull request #5983 from wenzhixin/dependabot/npm_and_yarn/node-sass-7.0.0

Bump node-sass from 6.0.1 to 7.0.0

package.json

@@ -21,7 +21,7 @@
     "foreach-cli": "^1.8.1",
     "glob": "^7.1.4",
     "headr": "^0.0.4",
-    "node-sass": "^6.0.0",
+    "node-sass": "^7.0.0",
     "npm-run-all": "^4.1.5",
     "rimraf": "^3.0.2",
     "rollup": "^2.6.1",