build(version): set version to 2.2.1 (cryostatio#1303)

Signed-off-by: Elliott Baron <ebaron@redhat.com>

Signed-off-by: Elliott Baron <ebaron@redhat.com>

build(version): set version to 2.1.1 for release (cryostatio#998)

build(version): set version for 2.1.0 release (cryostatio#926)

build(version): release version 2.0.0 (cryostatio#724)