update mocha to 9.0.0

Author: WebFreak001

package-lock.json

@@ -1282,7 +1282,7 @@
 		"@types/expand-tilde": "^2.0.0",
 		"@types/glob": "^7.1.4",
 		"@types/jsdom": "^16.2.13",
-		"@types/mocha": "^5.2.7",
+		"@types/mocha": "^9.0.0",
 		"@types/node": "^12.20.23",
 		"@types/parse5": "^5.0.3",
 		"@types/vscode": "^1.57.0",