Make package workflow independent of external actions

.gitea/workflows/publish.yml

@@ -14,20 +14,21 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: https://gitea.com/actions/checkout@v4
-        with:
-          token: ${{ secrets.GITEA_TOKEN }}
-          github-server-url: http://unpaismejor-gitea-app:3000
-          ref: 8.0
-          fetch-depth: 0
+        env:
+          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
+        run: |
+          test -n "$GITEA_TOKEN" || { echo "Missing GITEA_TOKEN secret"; exit 1; }
+          git init .
+          git remote add origin http://unpaismejor-gitea-app:3000/tryton-do/ncf_manager.git
+          git -c http.extraHeader="Authorization: token $GITEA_TOKEN" \
+            fetch --depth=1 origin 8.0
+          git checkout --detach FETCH_HEAD
 
-      - name: Configurar Python
-        uses: https://gitea.com/actions/setup-python@v5
-        with:
-          python-version: "3.11"
+      - name: Verificar Python
+        run: python3 --version
 
       - name: Instalar herramientas
-        run: python -m pip install --upgrade "build>=1,<2" "twine>=6,<7"
+        run: python3 -m pip install --upgrade "build>=1,<2" "twine>=6,<7"
 
       - name: Comprobar credenciales
         env:
@@ -38,7 +39,7 @@ jobs:
         env:
           PACKAGE_VERSION: 8.0.${{ gitea.run_number }}
         run: |
-          python - <<'PY'
+          python3 - <<'PY'
           from pathlib import Path
           import os, re
           path = Path('tryton.cfg')
@@ -49,14 +50,14 @@ jobs:
 
       - name: Construir y validar
         run: |
-          python -m build
-          python -m twine check dist/*
+          python3 -m build
+          python3 -m twine check dist/*
 
       - name: Publicar en Gitea PyPI
         env:
           TWINE_USERNAME: unpaismejor
           TWINE_PASSWORD: ${{ secrets.REGISTRY_PASSWORD }}
         run: |
-          python -m twine upload --non-interactive \
+          python3 -m twine upload --non-interactive \
             --repository-url https://code.unpaismejor.org.do/api/packages/tryton-do/pypi \
             dist/*