Release of Vitess v19.0.3

Removal of v19.0.2

The maintainers team decided to remove the v19.0.2 release as it contained a CVE fixed in v19.0.3.

The entire changelog for this release can be found here.

The release includes 16 merged Pull Requests.

Thanks to all our contributors: @GrahamCampbell, @app/vitess-bot, @frouioui, @rohit-nayak-ps, @shlomi-noach, @systay