Rational: when calling oow psql, sometimes, we don't want to put a database. Example, if we call "oow -d postgres -c 'psql'".
In that case, this improvment makes that default postgres database will be proposed in the 'prompt', if no database is provided
The linting check can be done on any docker image with the latest python
version.
This updates de pre-commit checks and fix file linting to conform to new
standards.
