v0.4.0

What's Changed

• chore: tx-submit-api 0.17.5 by @wolf31o2 in #130
• chore: ogmios 6.8.0 by @wolf31o2 in #131
• chore: cardano-node 9.2.0 by @wolf31o2 in #132
• feat: role for our go node by @wolf31o2 in #133
• chore: update default adder version to v0.23.4 by @agaffney in #134

Full Changelog: v0.3.4...v0.4.0