OMMX Python SDK 2.9.3

What's Changed

Bug fix

• Preserve SDK 2.x annotations in protobuf payloads by @termoshtt in #1262
• Backport named initial states for SCIP to dev-2.x by @termoshtt in #1274

Documentation update

• Fix SDK 2.x API reference warnings by @termoshtt in #1275
• Restore the 2.6 format for Python SDK 2.7–2.9 release notes by @termoshtt in #1276

Others

• Start developing OMMX Python SDK 2.9.3 by @tokenprovider-ommx[bot] in #1261
• Start developing 2.9.1 by @tokenprovider-ommx[bot] in #1260

Full Changelog: python-2.9.2...python-2.9.3