Bump sharp from 0.32.4 to 0.32.6 in /blog

Bumps [sharp](https://github.com/lovell/sharp) from 0.32.4 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@v0.32.4...v0.32.6)

---
updated-dependencies:
- dependency-name: sharp
  dependency-type: direct:production
...

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