v1.12.0-rc1

What's Changed

• chore: merge release/v1.11 into master by @LinZexiao in #131
• chore: upgrade venus and venus-auth by @simlecode in #132
• Feat/tanlang/add unseal state by @LinZexiao in #133
• feat: replace venus-gateway with sophon-gateway by @simlecode in #135
• build(deps): bump github.com/gin-gonic/gin from 1.9.0 to 1.9.1 by @dependabot in #134
• chore: bump version to v1.12.0-rc1 by @simlecode in #136

Full Changelog: v1.11.1...v1.12.0-rc1