Bump @sideway/formula from 3.0.0 to 3.0.1 in /website (#477)

Bumps [@sideway/formula](https://github.com/sideway/formula) from 3.0.0 to 3.0.1.
- [Release notes](https://github.com/sideway/formula/releases

)
- [Commits](hapijs/formula@v3.0.0...v3.0.1)

---
updated-dependencies:
- dependency-name: "@sideway/formula"
  dependency-type: indirect
...
Signed-off-by: dependabot[bot] <support@github.com>

website/package-lock.json

@@ -2525,9 +2525,9 @@
       }
     },
     "@sideway/formula": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/@sideway/formula/-/formula-3.0.0.tgz",
-      "integrity": "sha512-vHe7wZ4NOXVfkoRb8T5otiENVlT7a3IAiw7H5M2+GO+9CDgcVUUsX1zalAztCmwyOr2RUTGJdgB+ZvSVqmdHmg=="
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/@sideway/formula/-/formula-3.0.1.tgz",
+      "integrity": "sha512-/poHZJJVjx3L+zVD6g9KgHfYnb443oi7wLu/XKojDviHy6HOEOA6z1Trk5aR1dGcmPenJEgb2sK2I80LeS3MIg=="
     },
     "@sideway/pinpoint": {
       "version": "2.0.0",