Bump @sideway/formula from 3.0.0 to 3.0.1 in /example

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>

Author: dependabot[bot]

example/yarn.lock

@@ -968,9 +968,9 @@
     "@hapi/hoek" "^9.0.0"
 
 "@sideway/formula@^3.0.0":
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/@sideway/formula/-/formula-3.0.0.tgz#fe158aee32e6bd5de85044be615bc08478a0a13c"
-  integrity sha512-vHe7wZ4NOXVfkoRb8T5otiENVlT7a3IAiw7H5M2+GO+9CDgcVUUsX1zalAztCmwyOr2RUTGJdgB+ZvSVqmdHmg==
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/@sideway/formula/-/formula-3.0.1.tgz#80fcbcbaf7ce031e0ef2dd29b1bfc7c3f583611f"
+  integrity sha512-/poHZJJVjx3L+zVD6g9KgHfYnb443oi7wLu/XKojDviHy6HOEOA6z1Trk5aR1dGcmPenJEgb2sK2I80LeS3MIg==
 
 "@sideway/pinpoint@^2.0.0":
   version "2.0.0"