Maintenance release: Godot 3.4.4

In parallel to our work on the upcoming feature releases Godot 3.5 (with a second beta) and 4.0 (now at alpha 4!), we backport important fixes to the stable 3.4 branch for use in production.

Last month's 3.4.3 release was found to have a few regressions that could affect a lot of users, so we've been working on a bugfix-only release to solve those issues and a few other pre-existing issues. All users are advised to upgrade to Godot 3.4.4 for the best possible experience.

Read the release blog post for details on the changes.