DRY up dependencies

[stdavis]

Something like would DRY up the dependencies for a function-based skid: agrc/deq-eid-skid@b3fb29b

[steveoh]

I was wondering if you could read the requirements.txt file into the setup.py

[stdavis]

That commit worked. I moved away from it when I switched to a dockerfile for cloudrun. No more need for the requirements file after that.

[steveoh]

It's a nice improvement for function based skids still.