Give mcbm_beam_2024_05_08_nickel as option (deactivated, as setup is in the mcbm fork)

assigned to @p.-a.loizeau

Dear @f.uhlig, @p.-a.loizeau,

you have been identified as code owner of at least one file which was changed with this merge request.

Please check the changes and approve them or request changes.

added CodeOwners label

merged

added Simulation mCBM labels