v1.3.0a0

What's Changed

• Update changelog by @Omar-V2 in https://github.com/xai-org/xai-sdk-python/pull/31
• Add proto support for server side tools by @Omar-V2 in https://github.com/xai-org/xai-sdk-python/pull/32
• Bump version from v1.2.0 -> v1.3.0a0 by @Omar-V2 in https://github.com/xai-org/xai-sdk-python/pull/33

Full Changelog: https://github.com/xai-org/xai-sdk-python/compare/v1.2.0...v1.3.0a0