Add python version input

Author: luis11011

Diff for: .github/workflows/python-manually-publish-test.yml

@@ -4,8 +4,11 @@ on:
   workflow_dispatch:
     inputs:
       new_version:
-        description: 'New version'
+        description: 'New PyOptimus version (TestPyPI)'
         required: true
+      python_version:
+        description: 'Python version'
+        default: '3.10'
 
 jobs:
   update-version-and-create-tag:
@@ -15,10 +18,10 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v2
 
-      - name: Set up Python 3.10
+      - name: Set up Python ${{ github.event.inputs.python_version }}
         uses: actions/setup-python@v2
         with:
-          python-version: '3.10'
+          python-version: '${{ github.event.inputs.python_version }}'
 
       - name: Update version in toml file
         run: |