Consider bumping dependencies

[jmarrec]

parallel is 1.19.1, when 1.24.0 is out

octokit is 4.x when 8.x is out

@DavidGoldwasser

[wenyikuang]

I think we could bump the https://github.com/NREL/bcl-gem/blame/develop/bcl.gemspec#L38-L43 too.