Update python-publish.yml

Author: DavidLutton

.github/workflows/python-publish.yml

@@ -1,5 +1,5 @@
 # This workflow will upload a Python Package using Twine when a release is created
-# For more information see: https://help.github.com/en/actions/language-and-framework-guides/using-python-with-github-actions#publishing-to-package-registries
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python#publishing-to-package-registries
 
 # This workflow uses actions that are not certified by GitHub.
 # They are provided by a third-party and are governed by
@@ -12,15 +12,18 @@ on:
   release:
     types: [published]
 
+permissions:
+  contents: read
+
 jobs:
   deploy:
 
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: Set up Python
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v3
       with:
         python-version: '3.x'
     - name: Install dependencies