Merge pull request #117 from pecheneff/dpecheniev/v6.0.0

[MSUE-232] - Add typing. Apply code linters. Update documentation

Release 5.6.1 (#115)

Release 5.6.0 (#111)

Update publishing2PyPI.yml

Release 5.5.0 (#101)

Release 5.5.0

Release 5.4.0 (#98)

Updated version

Merge pull request #88 from jyothish6190/msue-123

feat: Update client libraries with PSP Merchant Management API

Merge pull request #85 from jyothish6190/json-serialization-msue-67

json serialization - bug fixed

5.0.2 release