simplified actions githb

Author: gaorkl

Diff for: .github/workflows/python-publish-release.yml

@@ -10,12 +10,8 @@ on:
 jobs:
   deploy:
 
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-latest]
-        python-version: [3.6, 3.7]
-
+    runs-on: ubuntu-latest
+    
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python