Features
- core: add default inputs if not already set in variables (Loïc Mathieu)
Bug Fixes
- ui: ExecutionRoot marge issue (YannC)
- core: null label value can crash the executor (Loïc Mathieu)
- core: missing lombok annotation on new storage tasks (Ludovic DEHON)
- core: prevent flow validation from crashing (#3278) (brian-mulier-p)
Chores
- bump version to v0.15.6 (Florian Hussonnois)