Add yaml.3.1.0
This dependency will be used in the WASM debugger, so that it can consume the config file of the smart rollup installer (in Yaml).
Additionally, it might also be used in Octogram.
This dependency will be used in the WASM debugger, so that it can consume the config file of the smart rollup installer (in Yaml).
Additionally, it might also be used in Octogram.