Python CLI Publication: LICENSE and NOTICE

### Is your feature request related to a problem? Please describe.

We currently do not have separate LICENSE and NOTICE for python CLI, we could follow the [ASF licensing how-to](https://infra.apache.org/licensing-howto.html) for binary distributions—ship a full copy of the Apache License 2.0 and an appropriate NOTICE file alongside the wheel and sdist.

Currently there is no copied code in python CLI source code, nor will we ship any in the binary distribution. We do need to include code generated by open-api-generator, but according to their project [README](https://github.com/OpenAPITools/openapi-generator?tab=readme-ov-file#34---license-information-on-generated-code), the generated code should be considered owned by the user of the software. Hence there’s no additional license concern here.

We also have pip-license-cli to help us check all the dependencies licenses.

### Describe the solution you'd like

_No response_

### Describe alternatives you've considered

_No response_

### Additional context

_No response_