Bump version to 4.4.1

Bump version to 4.4.0

Bump version to 4.3.0

Make 4.2.1 patch release (#569)

* Apply hotfix from 4.1.0 release (#568)

* Bump version to 4.2.1

* Compatibility patch for latest RapidJSON (#567)

* Compatibility patch for latest RapidJSON

* Use latest RapidJSON

Bump version to 4.2.0

[Hotfix] Don't open lib with RTLD_GLOBAL

Make patch release 4.1.1 (#555)

* Restore support for Python 3.8

* PyPy compatibility patch

* Load libtreelite.so with symbols visible globally

* Make 4.1.1 release

Fix test

Release 4.0.0 final

Release RC4