chore(deps): bump sharp and @netlify/ipx

Bumps [sharp](https://github.com/lovell/sharp) and [@netlify/ipx](https://github.com/netlify/netlify-ipx). These dependencies needed to be updated together.

Updates `sharp` from 0.30.7 to 0.32.6
- [Release notes](https://github.com/lovell/sharp/releases)
- [Changelog](https://github.com/lovell/sharp/blob/main/docs/changelog.md)
- [Commits](lovell/sharp@v0.30.7...v0.32.6)

Updates `@netlify/ipx` from 1.4.0 to 1.4.6
- [Release notes](https://github.com/netlify/netlify-ipx/releases)
- [Changelog](https://github.com/netlify/netlify-ipx/blob/main/CHANGELOG.md)
- [Commits](netlify/netlify-ipx@v1.4.0...v1.4.6)

---
updated-dependencies:
- dependency-name: sharp
  dependency-type: indirect
- dependency-name: "@netlify/ipx"
  dependency-type: indirect
...

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