chore: prepare release notes for 0.6.0

docs: prepare release notes

style: fix whitespace (black error)

chore: prepare release notes for 0.3.0

chore: create changelog for 0.2.1

chore: prepare release notes for 0.2.0

chore: prepare release notes for 0.1.1

fix: install correct build dependency

refactor: rename test directories

refactor: move serialization arguments to `BaseModel`