Update pip-install.yml

Author: RoryBarnes

.github/workflows/pip-install.yml

@@ -10,10 +10,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-20.04, ubuntu-22.04]
-        python-version: ['3.6', '3.7', '3.8', '3.9', '3.10', '3.11']
-        exclude:
-          - os: ubuntu-22.04
-            python-version: '3.6'
+        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
     steps:
       - uses: actions/checkout@v4
         with: