Prepare LHCb v54r15

[ci skip]

ReleaseNotes/v54r15.md

-2023-08-24 LHCb v54r15
+2023-08-25 LHCb v54r15
 ===
 
 This version uses
-Detector [v1r19](../../../../Detector/-/tags/v1r19),
-Gaudi [v36r16](../../../../Gaudi/-/tags/v36r16) and
+Gaudi [v36r16](../../../../Gaudi/-/tags/v36r16),
+Detector [v1r19](../../../../Detector/-/tags/v1r19) and
 LCG [103](http://lcginfo.cern.ch/release/103/) with ROOT 6.28.00.
 
 This version is released on the `master` branch.
@@ -16,6 +16,7 @@ Built relative to LHCb [v54r14](/../../tags/v54r14), with the following changes:
 
 ### Fixes ~"bug fix" ~workaround
 
+- ~Decoding ~Muon | Bug fix in indexing of a matrix, !4258 (@satta)
 - ~Persistency | Fix check for line decision in SelectiveCombineRawBankViewsToRawEvent, !4250 (@rmatev)
 
 
@@ -37,5 +38,6 @@ Built relative to LHCb [v54r14](/../../tags/v54r14), with the following changes:
 
 - ~Decoding ~Muon | MUON Decoding Update, !4160 (@satta)
 - ~RICH | RichPDPanel: Use local implementation of PD intersection for both DetDesc and DD4HEP, !4243 (@jonrob) [opg#19]
+- Prepare LHCb v54r15, !4257 (@rmatev)
 - Fix refs following !4248, !4254 (@rmatev)
 - Update References for: LHCb!4248 based on lhcb-master-mr/8920, !4249 (@lhcbsoft)