Merge branch 'jczhang/2026-02-05/improve-mpi-gpu-aware' into 'main'

Improve MPI GPU-aware configure and check

See merge request petsc/petsc!9005

Replace mpirun with mpiexec, as only the latter is in the standard

Merge branch 'balay/avoid-dup-cuda-sources' into 'main'

CI: avoid duplicate file names with cuda/kokkos sources, add a test to checkbadSource

See merge request petsc/petsc!8950

CI: avoid duplicate file names with cuda/kokkos sources, add a test to checkbadSource

cuda+coverage uses 'nvcc --keep-dir=DIR' option - this creates
conflicts with 'make -j' where intermediate gener

CI: avoid duplicate file names with cuda/kokkos sources, add a test to checkbadSource

cuda+coverage uses 'nvcc --keep-dir=DIR' option - this creates
conflicts with 'make -j' where intermediate generated files in DIR
during compilation of one source-file might affect the compile of
another source file - with the same name.

CI: linux-cuda-pkgs can now run all tests - so remove the 'vec*' restriction

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