Context

The SDK release build is failing with a syntax error in setup.py (e.g. in this run).

This is because we are setting it in a script using sed without quotation marks. We can instead pass the version directly to the generate command and it will quote the number properly.

Changes

• Pass version number and Github properties directly to the OpenAPI generate command, rather than manually replacing with sed
• Remove all unnecessary Python setup and installation in the Github Action (we don't need to install all the project dependencies or build the project, just poetry and twine)