Allow installation of spyglass from github in docker

[samuelbray32]

https://github.com/LorenFrankLab/spyglass/blob/460c24290b33524c35052d8ce6e7cf846d96866e/src/spyglass/utils/sql_helper_fn.py#L195

Sorry if my understanding is wrong here:

Issue

• when the environment is exported here, the spyglass package is set to be installed by pip
• If the user is on a commit that isn't released to pypi, then they wont get the specific commit they were on
• When testing, I ended up re-installing specific versions of spyglass with pip install git+https://github.com/LorenFrankLab/spyglass/...

This may not be much of a problem as things stabilize and for users not on the tip of development

Solution switch pip to install spyglass from github either when generating this yaml or within spyglass-docker-export