don't test for python 3.7

Signed-off-by: Harsh Modi <hmodi@redhat.com>

Author: hjmodi

.github/workflows/unittests.yaml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.7", "3.8", "3.9"]
+        python-version: ["3.8", "3.9"]
 
     steps:
       - uses: actions/checkout@v3