v0.4.2: Patch release

Major bugfix: exllama backend with arbitrary input length

This patch release includes a major bugfix to have the exllama backend work with input length > 2048 through a reconfigurable buffer size:

from auto_gptq import exllama_set_max_input_length

...
model = exllama_set_max_input_length(model, 4096)

• Expose a function to update exllama max input length by @fxmarty in #281

Exllama kernels support in Windows wheels

This patch tentatively includes the exllama kernels in the wheels for Windows.

• Add PyPI build workflow, tentatively fix exllama on windows by @fxmarty in #282

What's Changed

• Build wheels on ubuntu 20.04 by @fxmarty in #272
• Free disk space for rocm build by @fxmarty in #273
• Use focal for RoCm build by @fxmarty in #274
• Use conda incubator for rocm build by @fxmarty in #276
• Update install instructions by @fxmarty in #275
• Use --extra-index-url to resolve dependencies by @fxmarty in #277
• Fix python version for rocm build by @fxmarty in #278
• Fix powershell in workflow by @fxmarty in #284

Full Changelog: v0.4.1...v0.4.2