Release v0.1.0-alpha.29

What's Changed

• feat: Implement google cloud object storage provider by @daviderli614 in #167
• ci: refine the github actions by @zyy17 in #168
• fix: missing image tag when releasing by @zyy17 in #169

Full Changelog: v0.1.0-alpha.28...v0.1.0-alpha.29