install: use PEP-440 compatible version in `setup`: setuptools from version v66 doesn't accept anymore non PEP-440 compatible version. This is a Q&D fix, move to `pyproject.toml` with proper versioning as for Libervia backend should be done sooner than later.

create table callbacks (
    service text not null,
    node text not null,
    uri text not null,
    PRIMARY KEY (service, node, uri)
);