Bump vis-network from 9.1.6 to 9.1.8 (#5)

Bumps [vis-network](https://github.com/visjs/vis-network) from 9.1.6 to 9.1.8.
- [Release notes](https://github.com/visjs/vis-network/releases)
- [Changelog](https://github.com/visjs/vis-network/blob/master/HISTORY.md)
- [Commits](visjs/vis-network@v9.1.6...v9.1.8)

---
updated-dependencies:
- dependency-name: vis-network
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -26,7 +26,7 @@
     "react-dom": "^17.0.2",
     "tailwindcss": "^3.3.5",
     "vis-data": "^7.1.7",
-    "vis-network": "^9.1.6"
+    "vis-network": "^9.1.8"
   },
   "devDependencies": {
     "@docusaurus/module-type-aliases": "2.4.1",