chore(deps): update dependency npm-run-all2 to v6

Author: renovate[bot]

package.json

@@ -151,7 +151,7 @@
     "markdown-it-container": "^4.0.0",
     "markdown-it-emoji": "^3.0.0",
     "mocha": "^10.0.0",
-    "npm-run-all2": "^5.0.0",
+    "npm-run-all2": "^6.0.0",
     "nyc": "^15.1.0",
     "pako": "^2.0.3",
     "postcss-nested": "^6.0.0",