Implement automatic schema updates.

[elmattic]

Whenever we have a new change in Forest JSON-RPC API, RPC types, etc., we must regenerate the spec:

forest-tool shed openrpc --path v1 > forest-$(git rev-parse --short HEAD)-path-v1.json

Afterward, copy the generated file (or files) into this repository, making any necessary adjustments, e.g. renaming it to follow the format:
src/binding/specs/'v1 forest_9d76a71562f_path_v1.json'

This process should be automated.

According to @LesnyRumcajs it should be easily done with a GHA cronjob to grab the latest forest docker image and execute it and make a PR.