Update ci.yml

Author: GaetanoCarlucci

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
 
     strategy:
       matrix:
-        python-version: ["3.7", "3.8", "3.9"]
+        python-version: ["3.8", "3.9"]
 
     steps:
       - name: Check out the repository