Fix rclone path in Docker image

[webb-ben]

Fix rclone path in docker image by installing during Docker build
Addresses: #122

[C-Loftus]

I'm thinking, might it just be easier to move the rclone binary to the PATH in the container? That way we don't have to install in docker. Since we have 4 different scenarios: production, pytest in ci/cd, pytest locally, or local dagster dev, I feel like it may start to make it confusing to have essentially dependencies that are installed differently. I think having rclone in the pipeline is ugly but keeps it consistent.

I think this is cleaner than using the static method, just trying to prevent drift between dev/prod

[webb-ben]

The docker container runs from root. I do not think it is a safe assumption that the behavior inside the container is not something we will consistently see outside of the container. Leave the pipeline as is, and just install Docker appropriately using in the Dockerfle.