Bump lazysizes from 4.0.2 to 5.2.1

Bumps [lazysizes](https://github.com/aFarkas/lazysizes) from 4.0.2 to 5.2.1.
- [Release notes](https://github.com/aFarkas/lazysizes/releases)
- [Changelog](https://github.com/aFarkas/lazysizes/blob/gh-pages/CHANGELOG.md)
- [Commits](aFarkas/lazysizes@4.0.2...5.2.1)

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

Author: dependabot[bot]