Bump marked from 1.2.7 to 2.0.0 in /src/bismarck-web

Bumps [marked](https://github.com/markedjs/marked) from 1.2.7 to 2.0.0.
- [Release notes](https://github.com/markedjs/marked/releases)
- [Changelog](https://github.com/markedjs/marked/blob/master/release.config.js)
- [Commits](markedjs/marked@v1.2.7...v2.0.0)

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

src/bismarck-web/package.json

@@ -47,7 +47,7 @@
     "@types/react-dom": "^17.0.0",
     "@types/react-router-dom": "^5.1.6",
     "csstype": "^3.0.5",
-    "marked": "^1.2.7",
+    "marked": "^2.0.0",
     "parcel-bundler": "^1.12.3",
     "query-string": "^6.13.7",
     "react": "^17.0.1",