v0.2.0-OP_v1.2.0-CN_v0.12.0

This version contains:

• v0.2.0 = @celestiaorg/optimism version
• OP_v1.2.0 = Optimism v1.2.0
• CN_v0.12.0 = celestia-node v0.12.0, which corresponds to local-celestia-devnet v0.12.1

Full Changelog: https://github.com/celestiaorg/optimism/commits/v0.2.0-OP_v1.2.0-CN_v0.12.0