Remove getDet in CaloFutureElectron

This MR removes the usage of getDet in CaloFutureElectron and makes corresponding modifications in CaloFutureECorrection, as described in issue of Rec Issue388.

This MR needs to be tested in the same time with the MR in Rec MR3094 in Rec

patch generated by https://gitlab.cern.ch/lhcb/LHCb/-/jobs/24113435

added Calo RTA WP2 dd4hep labels

requested review from @cmarinbe

assigned to @gwan

changed the description

added RTA label

requested review from @gunther

removed review request for @gunther

mentioned in merge request Rec!3094 (merged)

• [2022-08-26 11:51] Validation started with lhcb-master-mr#5513

marked this merge request as ready

assigned to @jonrob

merged

mentioned in commit 76f7cb55

unassigned @jonrob