Release v1.0.3

Release v1.0.3: Symfony 8 demos and Hot Reload 1.4.

Changelog

Changed

• Demos: pin nowo-tech/hot-reload-bundle to ^1.4 with FrankenPHP Mercure/hot_reload (dev/test only).
• Demos: Symfony 8 only; Symfony 6/7 demo apps removed.

What's Changed

• chore(deps): bump rector/rector from 2.6.1 to 2.6.2 by @dependabot[bot] in #13

Full Changelog: v1.0.2...v1.0.3