Trying to fix failing tests

Author: amartinhuertas

.github/workflows/ci.yml

@@ -154,7 +154,7 @@ jobs:
             ${{ runner.os }}-test-
             ${{ runner.os }}-
       - uses: julia-actions/julia-buildpkg@v1
-      - run: julia --project=. --color=yes --check-bounds=yes test/runtests_mpi.jl          
+      - run: cd test/; julia --project=.. --color=yes --check-bounds=yes runtests_mpi.jl
   docs:
     name: Documentation
     runs-on: ubuntu-latest