MDBF-1156: Build container envs for Ubuntu 26.04#920

RazvanLiviuVarzaru merged 1 commit intoMariaDB:devMariaDB/buildbot:devfrom

RazvanLiviuVarzaru:MDBF-1156-build-envsRazvanLiviuVarzaru/buildbot-r:MDBF-1156-build-envsCopy head branch name to clipboard