v13.0.0-rc.1

This is the first release candidate for the upcoming v13 actors series, that will power Filecoin nv22.

FIPs included

• FIP0063: Switching to a new Drand Network
• FIP0074: Remove cron-based Automatic Deal Settlement
• FIP0076: Direct Data Onboarding
• FIP0083: Add built-in Actor events in the Verified Registry, Miner and Market Actors

Protocol Improvements and Bugfixes

• Multisig actor: Return transaction error data back to the user (#1422)
• Invoke Verif reg balance method with read only perms (#1421)
• Cache precommit state and use the cache state to expire all precommits in the proving deadline cron job (#1427)
• Take the batch builder by-value (#1493)
• fix: we changed the provider_sectors map to be keyed by actor-id (#1509)