Timeout during image pulling

I got a timeout while pulling the Docker images. Retry should be added.

RuntimeError: message: {"detail":"500 Server Error for http+docker://localhost/v1.45/images/create?tag=latest&fromImage=registry.gitlab.ics.muni.cz%3A443%2Fai-dojo%2Fdr-emu%2Frouter: Internal Server Error (\"Get \"https://registry.gitlab.ics.muni.cz:443/v2/ai-dojo/dr-emu/router/manifests/sha256:1355677de50414fea48570d263253c3936a9fe25003a8c306cbe16fe99eb0b95\": dial tcp 147.251.6.101:443: i/o timeout\")"}, code: 500