v1.0.4: Dropped support for Python 3.6 and added support for Python 3.10

• updated readthedocs configuration file
• added keyword argument adaptive to the CircuitTemplate.get_run_func method, which allows to indicate whether the generated equation file is expected to be called with an adaptive step-size solver (adaptive=True) or not
• reduced computational overhead for the creation and simulation of delayed differential equation systems
• removed a bug where edge attribute dictionaries were changed by mistake during the CircuitIR instantiation
• improved working directory management in the backend
• dropped official support for python 3.6 and added support for python 3.10