Add MOA to solver-tests.yml (#2312)

Author: odow

.github/workflows/solver-tests.yml

@@ -40,6 +40,7 @@ jobs:
           - package: 'Ipopt'
           - package: 'Juniper'
           - package: 'MosekTools'
+          - package: 'MultiObjectiveAlgorithms'
           - package: 'NLopt'
           - package: 'OSQP'
           - package: 'PATHSolver'