Draft: K202125/cdi 1.8.x pio merge followup

• limit buildbot to special branches: master, develop, cdi-1.8.x-pio-merge-followup
• use more general test script names instead of compiler version specific ones (to make the bb server config more agnostic to changes
• make levante work
• support buildbot trigger like in icon (e.g. @bb) given as merge request comments