Simplify GH actions Python version

Author: alessfg

.github/workflows/galaxy.yml

@@ -14,7 +14,7 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Set up Python 3
-        uses: actions/setup-python@v3.0.0
+        uses: actions/setup-python@v3
         with:
           python-version: 3.x
 

.github/workflows/molecule.yml

@@ -31,7 +31,7 @@ jobs:
 
       - name: Set up Python 3
         if: github.event.pull_request.head.repo.full_name == github.repository
-        uses: actions/setup-python@v3.0.0
+        uses: actions/setup-python@v3
         with:
           python-version: 3.x