deps: bump @types/node from 18.17.11 to 20.6.0

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 18.17.11 to 20.6.0.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/node)

---
updated-dependencies:
- dependency-name: "@types/node"
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

cli/tutors-gen-lib/package.json

@@ -17,7 +17,7 @@
     "@types/js-yaml": "^4.0.5",
     "@types/markdown-it-emoji": "^2.0.2",
     "@types/markdown-it-footnote": "^3.0.0",
-    "@types/node": "^20.2.6",
+    "@types/node": "^20.6.0",
     "@types/shelljs": "^0.8.12",
     "commander": "^10.0.1",
     "front-matter": "^4.0.2",

cli/tutors-publish-html/package.json

@@ -17,7 +17,7 @@
     "tutors-html": "./src/tutors-publish-html.js"
   },
   "dependencies": {
-    "@types/node": "^18.14.4",
+    "@types/node": "^20.6.0",
     "@types/nunjucks": "^3.2.1",
     "@types/shelljs": "^0.8.11",
     "commander": "^10.0.0",