message: Point to uberenv with simplified MFEM package
diff: @@ -18,7 +18,7 @@ set -o errexit
  set -o nounset
  uberenv_url="https://github.com/mfem/mfem-uberenv.git"
  -uberenv_ref="5edfadabc7ba25126c36064abf68805aea14c405"
  +uberenv_ref="a268844932472ff9bec9caaee449ffecd4bdf2f3"
  [[ ! -d tests/uberenv ]] && git clone ${uberenv_url} tests/uberenv
  cd tests/uberenv
  