vtkExodusFileSeriesReader: update regex

update regex for fixing #19056 and #19202 at the same time.

ParaViewCore/VTKExtensions/Default/vtkExodusFileSeriesReader.cxx

@@ -244,7 +244,7 @@ void vtkExodusFileSeriesReader::FindRestartedResults()
   // The `e` in the above pattern can be any of exodus supported extensions e.g.
   // exo, ex2, etc. Hence we keep the regex generic (ref: paraview/paraview#19056,
   // paraview/paraview#19202).
-  vtksys::RegularExpression regEx("^([^\\.]*\\.[a-zA-Z0-9]+)(-s.[0-9]+)?(\\.[0-9]+\\.[0-9]+)?$");
+  vtksys::RegularExpression regEx("^(.*\\.[eg][^-.]*)(-s.[0-9]+)?(\\.[0-9]+\\.[0-9]+)?$");
   if (!regEx.find(baseName))
   {
     // Filename does not follow convention.  Just use it.