[kowainik#70] Support GHC-9.4 (kowainik#71)

* [kowainik#70] Support GHC-9.4

Resolves kowainik#70

* [kowainik#70] Update CI

Resolves kowainik#70

* Update to GHC-9.4.4

* Drop support of GHC-8.4

* Update version number

Update copyright

Prepare 0.1.0.0 release (kowainik#46)