Added --override-option-class option to LbExec for `v55r12p1-patches`

cherry-pick of Added --override-option-class option to LbExec for 2024-patches

See merge request !4834 (merged)

assigned to @msaur

mentioned in merge request !4845 (merged)

• [2024-12-27 11:40] Automatic merge failed in [lhcb-RTA-2024-08-22-4-patches-mr#4](https://lhcb-nightlies.web.cern.ch/nightly/lhcb-RTA-2024-08-22-4-patches-mr/4/LHCb/checkout
• [2024-12-27 11:53] Validation started with lhcb-RTA-2024-08-22-4-patches-mr#5

added 2 commits

• c97f6d01 - Merge branch 'reduce-mem-overhead' into 'v55r12p1-patches'
• 0062eb7e - Merge branch 'cherry-pick-0aa5963d' into 'msaur_add_lbexec_overrride_for_patching_v55r12p1'

Compare with previous version

/ci-test !4847 (merged) Rec!4208 (merged) Moore!4206 (merged) Moore!4205 (merged)

added ci-test-triggered label

The RefBot pipeline failed!

The RefBot pipeline failed!

resolved all threads

mentioned in commit 61acc8bc

merged