Deps: Bump ical.js from 1.5.0 to 2.0.0

Bumps [ical.js](https://github.com/kewisch/ical.js) from 1.5.0 to 2.0.0.
- [Release notes](https://github.com/kewisch/ical.js/releases)
- [Changelog](https://github.com/kewisch/ical.js/blob/main/CHANGELOG.md)
- [Commits](kewisch/ical.js@v1.5.0...v2.0.0)

---
updated-dependencies:
- dependency-name: ical.js
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

package.json

@@ -46,7 +46,7 @@
     "hoist-non-react-statics": "^3.3.2",
     "i18next": "^23.10.1",
     "i18next-xhr-backend": "3.2.2",
-    "ical.js": "^1.5.0",
+    "ical.js": "^2.0.0",
     "memoize-one": "^6.0.0",
     "moment": "^2.30.1",
     "moment-timezone": "^0.5.45",