Create Docker image for the analysis

[huddlej]

We need a Docker image with TreeKnit and other dependencies installed. This is the only way we can hope to make our analysis reproducible with TreeKnit (and even then, TreeKnit has some stochastic outputs that have no random seed controls).

• [x] Confirm image works on Windows
• [x] Confirm image works on Mac Intel
• [ ] Confirm image works on Mac ARM64
  • [x] Build Intel 64 image from personal laptop (non-arm64)
  • [x] Manually upload Intel 64 image to Docker Hub (sign up for free account)
  • [ ] Confirm that we can download and run Intel 64 image on M1 Mac with emulation
  • [ ] Build Intel 64 image with GitHub Actions in cartography repo
  • [ ] Upload Intel 64 image to Docker Hub from the GitHub Action
• [ ] Test image on AWS Batch with nextstrain build

[nandsra21]

Upload to the container registery with the same tag different digest

[huddlej]

We should consider using Victor's custom-docker approach for this project's Docker image.