Bump @next/env from 12.3.4 to 13.4.13

Bumps [@next/env](https://github.com/vercel/next.js/tree/HEAD/packages/next-env) from 12.3.4 to 13.4.13.
- [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/commits/v13.4.13/packages/next-env)

---
updated-dependencies:
- dependency-name: "@next/env"
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -33,7 +33,7 @@
     "@mdx-js/react": "^1.6.22",
     "@mui/icons-material": "^5.14.3",
     "@mui/material": "^5.14.3",
-    "@next/env": "^12.3.4",
+    "@next/env": "^13.4.13",
     "@storybook/addon-backgrounds": "^7.0.10",
     "@storybook/addon-postcss": "^2.0.0",
     "@storybook/addon-viewport": "^7.0.10",