Draft: Use debian slim image by default in CI
What does this MR do and why?
Use a debian-slim
image by default in the CI.
Before / After
Compare the same jobs in a pipeline outside of this MR, and in this MR. Both jobs should not use caching for the image, so that we can properly compare the time it takes to download the image.
MR acceptance checklist
This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.
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I have evaluated the MR acceptance checklist for this MR.
Edited by David Dieulivol