ci: removed python versions for test

Author: jankovicgd

Diff for: .github/workflows/main.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        python-version: ['3.10', '3.11', '3.12']
+        python-version: ['3.10']
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5