Update build_and_test.yml

Author: sagorbrur

.github/workflows/build_and_test.yml

@@ -17,7 +17,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ["3.6", "3.7", "3.8", "3.9", "3.10"]
+        python-version: ["3.8", "3.9", "3.10"]
         exclude:
         - os: ubuntu-latest
           python-version: "3.6"