tests: exclude mvapich2 from MPI families on aarch64

mvapich2 is not available on aarch64. Build the MPI families
list dynamically so that mvapich2 is only included on other
architectures.

Generated with Claude Code (https://claude.ai/code)

Signed-off-by: Karl W Schulz <karl@utexas.edu>
Signed-off-by: Adrian Reber <areber@redhat.com>

Author: adrianreber

tests/ci/setup_slurm_and_run_tests.sh

@@ -130,6 +130,10 @@ sudo --user="${USER}" --login bash -c "cd ${PWD}/tests; find ./ -name '*.log' -d
 
 # Always running at least with '--enable-modules'. No need to check for
 # an empty TESTS array.
+MPI_FAMILIES="openmpi5 mpich"
+if [ "$(uname -m)" != "aarch64" ]; then
+	MPI_FAMILIES="${MPI_FAMILIES} mvapich2"
+fi
 if sudo \
 	--user="${USER}" \
 	--preserve-env=SIMPLE_CI \
@@ -144,7 +148,7 @@ if sudo \
 			--enable-rms-harness \
 			--enable-compilers \
 			--with-compiler-families='${COMPILER_FAMILY}' \
-			--with-mpi-families='openmpi5 mpich mvapich2' \
+			--with-mpi-families='${MPI_FAMILIES}' \
 			${TESTS[*]}; \
 		make check"; then
 	TESTS_FAILED=0