Migrate affymetrix image to renv

[arkid15r]

Context

We're currently trying to pin R dependencies (#3170) to prevent them from breaking between deploys. At this moment I'm in the process of updating the workers. Currently I'm working on rebuilding the affymetrix image using the newrenv approach.

Problem or idea

The affymetrix image build process takes at least 8 hours and differs from other images a bit (see the install_ensg_pkgs.R script). The install_ensg_pkgs.R script may require a special approach as it uses custom packages. We need to figure out whether it's possible to use renv with an external repository or leave it as an extra step for docker image build.

Solution or next step

• look into install_ensg_pkgs.R internal logic
• install external package, try to get it captured by renv
• install all regular dependencies (time consuming)
• save and export the renv.lock file
• rebuild affymetrix using the new renv.lock

[arkid15r]

Implemented in https://github.com/AlexsLemonade/refinebio/pull/3167 and https://github.com/AlexsLemonade/refinebio/pull/3241