Bump date-fns from 2.22.1 to 2.23.0 (#263)

Bumps [date-fns](https://github.com/date-fns/date-fns) from 2.22.1 to 2.23.0.
- [Release notes](https://github.com/date-fns/date-fns/releases)
- [Changelog](https://github.com/date-fns/date-fns/blob/master/CHANGELOG.md)
- [Commits](https://github.com/date-fns/date-fns/compare/v2.22.1...v2.23.0)

---
updated-dependencies:
- dependency-name: date-fns
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

web/package.json

@@ -14,7 +14,7 @@
     "chart.js": "^3.4.1",
     "chartkick": "^4.0.5",
     "classnames": "^2.3.1",
-    "date-fns": "^2.22.1",
+    "date-fns": "^2.23.0",
     "markdown-it": "^12.1.0",
     "next": "^11.0.1",
     "prop-types": "^15.7.2",