Sequencer Relayer 0.12.0

What's Changed

• fix(sequencer-relayer): shutdown not propagating on API server fail by @Fraser999 in #883
• feat(sequencer-relayer): provide a shutdown controller by @Fraser999 in #889
• feat(core): generate pbjon impls for sequencer types needed to mock conductor by @SuperFluffy in #905
• feat: replace hex by base64 for display formatting, emitting tracing events by @SuperFluffy in #908
• refactor(proto)!: update SequencerBlockHeader and related proto types to not use cometbft header by @noot in #830
• feat(sequencer)!: update to ABCI v0.38 by @noot in #831
• refactor(core): remove SequencerBlock::try_from_cometbft by @noot in #1005
• feat(sequencer-relayer)!: submit blobs directly to celestia app by @Fraser999 in #963
• feat(conductor, relayer)!: brotli compress data blobs by @joroshiba in #1006
• release: sequencer 0.11, conductor 0.14, composer 0.6, relayer 0.12 by @joroshiba in #998

Full Changelog: sequencer-relayer-v0.11.0...sequencer-relayer-v0.12.0