Update Axom and MFEM

[chapman39]

• Updates spack, axom, and mfem
• Clean spack repo after successful TPL build. Fixes #800
• I'll be skipping updating docker containers in here since that will be done in this PR: https://github.com/LLNL/serac/pull/1074

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (1cf663c) 88.79% compared to head (f7f6543) 88.84%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #1079 +/- ## =========================================== + Coverage 88.79% 88.84% +0.04% =========================================== Files 154 154 Lines 12511 12511 =========================================== + Hits 11109 11115 +6 + Misses 1402 1396 -6 ```

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[chapman39]

@jamiebramwell In this new MFEM version, the strumpack ctor being used is deprecated. Looks like there is another one that takes in a matrix object that could be used instead.

   // Constructor with STRUMPACK matrix object and command line arguments.
   STRUMPACKSolver(STRUMPACKRowLocMatrix &A, int argc, char *argv[]);

In file included from /usr/WS2/meemee/serac/repo/src/serac/numerics/equation_solver.cpp:7:
/usr/WS2/meemee/serac/repo/src/serac/infrastructure/../../serac/numerics/equation_solver.hpp:208:53: error: 'STRUMPACKSolver' is deprecated [-Werror,-Wdeprecated-declarations]
  StrumpackSolver(int print_level, MPI_Comm comm) : strumpack_solver_(0, nullptr, comm)
                                                    ^
/usr/WS2/smithdev/libs/serac/toss_4_x86_64_ib/2024_02_15_11_25_36/clang-14.0.6/mfem-4.6.2-rc0-nsazjwq3gfybuqduzgsph4ygf5gq5re5/include/mfem/linalg/strumpack.hpp:234:4: note: 'STRUMPACKSolver' has been explicitly marked deprecated here
   MFEM_DEPRECATED STRUMPACKSolver(int argc, char *argv[], MPI_Comm comm)
   ^
/usr/WS2/smithdev/libs/serac/toss_4_x86_64_ib/2024_02_15_11_25_36/clang-14.0.6/mfem-4.6.2-rc0-nsazjwq3gfybuqduzgsph4ygf5gq5re5/include/mfem/mesh/../fem/../general/globals.hpp:120:40: note: expanded from macro 'MFEM_DEPRECATED'
#define MFEM_DEPRECATED __attribute__((deprecated))
                                       ^
In file included from /usr/WS2/meemee/serac/repo/src/serac/numerics/odes.cpp:7:
In file included from /usr/WS2/meemee/serac/repo/src/serac/infrastructure/../../serac/numerics/odes.hpp:20:
/usr/WS2/meemee/serac/repo/src/serac/infrastructure/../../serac/numerics/equation_solver.hpp:208:53: error: 'STRUMPACKSolver' is deprecated [-Werror,-Wdeprecated-declarations]
  StrumpackSolver(int print_level, MPI_Comm comm) : strumpack_solver_(0, nullptr, comm)
                                                    ^
/usr/WS2/smithdev/libs/serac/toss_4_x86_64_ib/2024_02_15_11_25_36/clang-14.0.6/mfem-4.6.2-rc0-nsazjwq3gfybuqduzgsph4ygf5gq5re5/include/mfem/linalg/strumpack.hpp:234:4: note: 'STRUMPACKSolver' has been explicitly marked deprecated here
   MFEM_DEPRECATED STRUMPACKSolver(int argc, char *argv[], MPI_Comm comm)
   ^
/usr/WS2/smithdev/libs/serac/toss_4_x86_64_ib/2024_02_15_11_25_36/clang-14.0.6/mfem-4.6.2-rc0-nsazjwq3gfybuqduzgsph4ygf5gq5re5/include/mfem/mesh/../fem/../general/globals.hpp:120:40: note: expanded from macro 'MFEM_DEPRECATED'
#define MFEM_DEPRECATED __attribute__((deprecated))

edit: This has been resolved

[chapman39]

Updating spack and fixing this mvapich2 error I've been getting in LiDO just to get it out of the way. Once tpls have been rebuilt this pr should be ready.