Make Seam client accept custom http requests client

[andrii-balitskyi]

• Bump generator to 1.10.1
• ci: Generate code
• Fix tests
• Bump generator to 1.10.2
• ci: Generate code
• Remove unnecessary import
• Bump generator to 1.10.3 to fix circular imports with a separate file options.py
• ci: Generate code
• Add SeamMultiWorkspace
• Add constants.py
• Add get_endpoint helper fn
• Add RequestMixin to define common make_request method
• ci: Format code
• Disable generate workflow
• Add abstract classes, add helper for getting PAT, fix create ws test
• Enforce keyword only args in WorkspacesProxy methods
• Define WorkspacesProxy outside SeamMultiWorkspace
• Fix proxy class usage
• Add SeamHttpClient class
• Adjust the routest to test new requests.Session

[andrii-balitskyi]

Closed in favour of #51