Release 2.2 edits

[ojustino]

Hi @gmzsebastian, here are some edits in response to your work in spacetelescope#175. The high-level summary:

• Updated the docstrings for addSersicProfile() and oldSersicProfile() in stips/astro_image/astro_image.py. The previous versions didn't actually describe the arguments used to call the methods elsewhere in the code, instead listing arguments and returned objects that don't currently appear. Please let me know if you agree that my edits follow the functions' intended inputs and outputs.
• Increased minimum version of Pandeia in installation docs to match the updates elsewhere.
• Increased the minimum version of Python to 3.11 3.10 while also performing tests in 3.11 to match other dependencies.
• Edited version in setup.cfg to 2.2.0 – this is what actually changes the version when you install on the command line.

Also, do you have a number for how much less accurate the fast_galaxy scenario is for injecting sources? It might be useful to quantify it since you put a number on the gain in efficiency.

[gmzsebastian]

Thanks @ojustino, it all looks great. Thanks for the updates! I will accept and change a couple typos that @eunkyuh found in the docs and I will change the default on the docstring of convolve_galaxy to True, which I just noticed I had mislabeled.