EigenDA Blazar (V2) Testnet Release

WARNING: There are breaking changes in this upgrade that require you to expose 2 new ports and a socket registration update. Please use the Blazar upgrade guide for the instructions on migrating your node.

What's Changed

• Testnet release 0.9.0-rc.1 by @dmanc in #164

Full Changelog: v0.9.0-rc.0...v0.9.0-rc.1