Set environment for package publishing

Author: samwelkanda

.github/workflows/publish.yml

@@ -19,13 +19,14 @@ jobs:
   deploy:
 
     runs-on: ubuntu-latest
+    environment: pypi_prod
 
     steps:
     - uses: actions/checkout@v3
     - name: Set up Python
       uses: actions/setup-python@v3
       with:
-        python-version: '3.x'
+        python-version: '3.8'
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip