[RM-9015] Found invalid inverse variance should not be raised in solver

Created on 2024-06-10 12:40:22 by Ali Allaoui. % Done: 70

Fix : replace all calls to GetIndexAtWaveLength with getClosedIntervalIndices when GetIndexAtWaveLength is used to retrieve an interval
/net/CESAM/amazed/aallaoui/pfs_weekly/edr/1.1.3/run16_20240515 10015-00001-1,1-000000000000291e-006-0x56eedcea64229d84 qso solver for example