From 1. 4., DockerHub introduces new very strict rate limitations on docker image pulls.
Consider changing FROM tags in dockerfiles to use altenative providers or add login step at the beginning of CI/CD job as authenticated requests aren't affected.
7c02b62bc7b1dbf6b079f9c12c70c006b951f0e822 commits (ondrej.guth@fit.cvut.cz)