Bug: `make docker` fails because `pyquil_version` arg is undefined

[jselig-rigetti]

If I try make docker, I get an error because it's unset, and I didn't see anything documenting that I should set it manually.

Originally posted by @asaites in #1834 (comment)

The Dockerfile currently is used correctly by .github/workflows/publish.yml which uses a version after a pypi publish.

Fix make docker, or remove if it does not even make sense to have.