Update GitHub Actions workflow for testing

Author: gowridurgad

.github/workflows/testingfr#77.yml

@@ -3,20 +3,20 @@ on:
   workflow_dispatch:
 jobs:
   build:
-    runs-on: ubuntu-24.04-ppc64le
+    runs-on: ubuntu-latest
     # strategy:
     #   fail-fast: false
     #   matrix:
     #     os: [windows-2025, ubuntu-latest, macos-latest, macos-13]       
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4 
+        uses: actions/checkout@v6
       - name: Set up python
         # uses: actions/setup-python@main
         uses: actions/setup-python@v6
         with:
 
             python-version:  '3.11'
-            architecture: 'ppc64le'
+            pip-install: dotenv