update to python 3.11

.github/workflows/package-linux.yml

@@ -29,7 +29,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v4
       with:
-        python-version: 3.8
+        python-version: 3.11
         cache: 'pip'
     - name: Install python dependencies
       run: |
@@ -71,6 +71,7 @@ jobs:
         path: './*.AppImage*'
     - name: Release
       uses: softprops/action-gh-release@v1
+      if: startsWith(github.ref, 'refs/tags/')
       with:
         prerelease: true
         generate_release_notes: true