Environment bug fix. Reinstall CityLearn to bump version from 1.3.2 to 1.3.3

[kingsley_nweye]

A recent bug fix has been implemented in the CityLearn environment. Please, upgrade the CityLearn environment by executing:

pip install git+https://github.com/intelligent-environments-lab/CityLearn.git@v1.3.3

The fixed bugs are:

1. Variable name error in env.get_building_information(); pv.capacity replaced with pv.nominal_power.

See https://github.com/intelligent-environments-lab/CityLearn/releases/tag/v1.3.3 for full change log.