updates indexing in scotch partitioning for newer gcc versions (>= 13.x) #241

Job	Run time
Check file changes	19s
Test on Mac	6m 37s
Test on ubuntu-latest	1m 55s
Test on ubuntu-22.04	2m 2s
Test Intel on ubuntu-22.04	14m 54s
Test 1 - meshfem3D simple model	3m 49s
Test 2 - fault tpv5	5m 8s
Test 5a - kernel homogeneous acoustic	3m 1s
Test 3 - layered halfspace	3m 20s
Test 4 - small adjoint	3m 32s
Test 0 - make tests	7m 40s
Test 5b - kernel homogeneous acoustic GPU HIP	9m 51s
Test 6a - kernel homogeneous halfspace	9m 0s
Test 6b - kernel homogeneous halfspace GPU HIP	23m 15s
Test 7 - socal1D	3m 29s
Test 8 - socal1D 1d_socal	3m 18s
Test 10 - socal1D 1d_cascadia	3m 8s
Test 11 - coupling FK	3m 17s
Test 12 - homogeneous halfspace	2m 29s
Test 13 - poroelastic	2m 55s
Test 14 - PML elastic	2m 33s
Test 15 - PML acoustic	2m 9s
Test 16 - waterlayered halfspace	3m 29s
Test 17 - tomographic model	2m 49s
Test 18 - cavity	2m 32s
Test 19 - sep bathymetry	2m 44s
Test 20 - socal1D HDF5 I/O	3m 26s
Test 21 - meshfem3D simple model w/ ADIOS2	7m 17s
Test 22 - coupling SPECFEM	8m 39s
Test 9 - socal1D 1d_prem	2m 59s
	2h 31m 36s

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