CaloRec: Fix for writing correction constanta to pool.

CaloRec: Fix for writing correction constanta to pool.

In CaloClusterCorrDBWriter::execute, make sure that the detector store
has been created.  We'll need it during finalize().

Calorimeter/CaloRec/src/CaloClusterCorrDBWriter.cxx

 /*
-  Copyright (C) 2002-2020 CERN for the benefit of the ATLAS collaboration
+  Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
 */
 
 //-----------------------------------------------------------------------
@@ -92,6 +92,8 @@ StatusCode CaloClusterCorrDBWriter::finalize()
 
 StatusCode CaloClusterCorrDBWriter::execute (const EventContext& /*ctx*/) const
 {
+  // Make sure the detector store gets created.
+  (void)detStore()->name();
   return StatusCode::SUCCESS;
 }