Optimize CI jobs

Hugo Kerstensrequested to merge
ci-in-docker into master

This MR optimizes the CI jobs. The full CI pipeline now takes 3-4 minutes instead of 5+ minutes.

  • Adds a test.Dockerfile specifically designed for running CI jobs.
  • Adds a new manual job build-image that updates this test image by installing all conda packages and node modules.
  • No longer updates conda environment in CI, since it was quite slow.
  • Removes the CI cache for node modules as it is quite slow, the docker image acts like the cache now.

The test image is for the entire repository, so when a dependency is added just start the manual job for that branch. Node modules are still updated during CI (for all non Python jobs), but if you add a lot of node modules it is wise to also run build-image to save time.

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