Run tests 5 times

.github/workflows/run-tests.yml

@@ -12,6 +12,7 @@ jobs:
     strategy:
       matrix:
         python-version: [ 3.7, 3.8, 3.9 ]
+        iteration: [1, 2, 3, 4, 5]
     timeout-minutes: 10
     steps:
       - uses: actions/checkout@v2