Upgrade to Phix 1.0.4 multi-arch image

[rzuckerm]

Description

The new Phix docker image supports both linux/amd64 and linux/arm64

Contributing requirements

• [x] I read the contribution guidelines in CONTRIBUTING.md.
• [x] I placed my solution in the correct solution folder.
• [x] I added a README.md with the right badge(s).
• [x] I added a Dockerfile that builds and runs my solution.
• [x] I selected drag-race as the target branch.
• [x] All code herein is licensed compatible with BSD-3.

[rbergen]

@rzuckerm Thank you! I clearly missed the lack of ARM64 support in this base image when I reviewed this.