expand regex in vtkExodusFileSeriesReader
requested to merge utkarsh.ayachit/paraview:19056-exodus-reader-is-crazy-slow-reading-time-data-again into master
vtkExodusFileSeriesReader regex was too restrictive and ended up missing valid exodus files series causing the superclass to takeup slower code patch to determine timesteps info etc. Fixed that.
Fixes #19056 (closed).
also fixes #19093 (closed)