Drop python 2.7 from CI

The setup-python action no longer supports 2.7 and dropped its support

Signed-off-by: Uilian Ries <uilianries@gmail.com>

Author: uilianries

.github/workflows/workflow.yml

@@ -24,7 +24,7 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        python: [ '2.7', '3.6', '3.8', '3.12' ]
+        python: [ '3.6', '3.8', '3.12' ]
     steps:
       - uses: actions/checkout@v4
 
@@ -42,7 +42,7 @@ jobs:
     runs-on: windows-latest
     strategy:
       matrix:
-        python: [ '2.7', '3.6', '3.8', '3.12' ]
+        python: [ '3.6', '3.8', '3.12' ]
     steps:
       - uses: actions/checkout@v4