Revert "[Circle-CI] Temporarily removed (build|test|upload)-rhel8 jobs" and replace RHEL8 builds with RHEL9 ones
Revert "[Circle-CI] Temporarily removed (build|test|upload)-rhel8 jobs" and replace RHEL8 builds with RHEL9 ones

fmidev/smartmet-library-newbase,fmidev/smartmet-library-newbase