Remove python 3.7 and 3.8 from style test GHA workflow

Author: kushalbakshi

.github/workflows/test.yaml

@@ -13,12 +13,7 @@ jobs:
     strategy:
       matrix:
         py_ver: ["3.9", "3.10"]
-        mysql_ver: ["8.0", "5.7"]
-        include:
-          - py_ver: "3.8"
-            mysql_ver: "5.7"
-          - py_ver: "3.7"
-            mysql_ver: "5.7"
+        mysql_ver: ["8.0"]
     steps:
       - uses: actions/checkout@v3
       - name: Set up Python ${{matrix.py_ver}}