Merge branch 'hzhang-bantingl/superlu-matsolvetranspose' into 'main'Superlu_dist: add tests of MatSolveTranspose() MatMatSolveTranspose()See merge request petsc/petsc!5942
followup MR5723; add tests of MatSolveTranspose() MatMatSolveTranspose() to src/mat/tests/ex125.c