Merge pull request #40 from hackmdio/dependabot/npm_and_yarn/highlight.js-10.4.1

Author: Yukaii

package-lock.json

@@ -246,7 +246,7 @@
  "eslint-plugin-react-hooks": "^4.6.0",
  "flowchart.js": "^1.12.2",
  "glob": "^7.1.4",
- "highlight.js": "^9.15.8",
+ "highlight.js": "^10.4.1",
  "ignore-loader": "^0.1.2",
  "imports-loader": "^4.0.1",
  "jquery": "^3.5.0",