tools: update dependencies in lint-md-cli-rollup

Summary
+ Update `@zeit/ncc` to `^0.16.1` from `^0.15.2`
+ Update `unified-engine` to `^6.0.1` from `^5.1.0`
+ Run `npm audit fix`
+ Run `npm run build-node`

Refs:
+ https://github.com/unifiedjs/unified-engine/releases/tag/6.0.0
+ https://github.com/unifiedjs/unified-engine/releases/tag/6.0.1
+ https://github.com/zeit/ncc/releases/tag/0.16.0
+ https://github.com/zeit/ncc/releases/tag/0.16.1

PR-URL: #26889
Refs: https://github.com/unifiedjs/unified-engine/releases/tag/6.0.0
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Yuta Hiroto <hello@hiroppy.me>
Signed-off-by: Beth Griggs <Bethany.Griggs@uk.ibm.com>

Author: watilde

tools/lint-md.js

@@ -3,15 +3,15 @@
   "description": "remark packaged for node markdown linting",
   "version": "2.0.0",
   "devDependencies": {
-    "@zeit/ncc": "^0.15.2"
+    "@zeit/ncc": "^0.16.1"
   },
   "dependencies": {
     "markdown-extensions": "^1.1.1",
     "remark": "^10.0.1",
     "remark-lint": "^6.0.4",
     "remark-preset-lint-node": "^1.6.0",
     "unified-args": "^6.0.0",
-    "unified-engine": "^5.1.0"
+    "unified-engine": "^6.0.1"
   },
   "main": "src/cli-entry.js",
   "scripts": {