Bump next from 9.5.3 to 9.5.4

Bumps [next](https://github.com/vercel/next.js) from 9.5.3 to 9.5.4.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](https://github.com/vercel/next.js/compare/v9.5.3...v9.5.4)

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

web/package.json

@@ -13,7 +13,7 @@
     "classnames": "^2.2.6",
     "d3-scale": "^3.2.3",
     "d3-time-format": "^3.0.0",
-    "next": "9.5.3",
+    "next": "9.5.4",
     "prop-types": "^15.7.2",
     "react": "16.13.1",
     "react-dom": "16.13.1",