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.
"git@gitlab.fit.cvut.cz:stercjak/BP.git" did not exist on "a9eba4715d0146ebb7d30bb8fd73750100f6ce8d"
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Use CTU username and password to login via 'CTU login'