Revert "update release workflow to be based on releases"

This reverts commit be86ebad40.

This isn't possible with act

.gitea/workflows/publish.yaml

@@ -0,0 +1,18 @@
+# SPDX-FileCopyrightText: 2023 Max Mehl <https://mehl.mx>
+#
+# SPDX-License-Identifier: Apache-2.0
+
+name: Python package
+on:
+  push:
+    tags:
+      - "v*.*.*"
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Build and publish to PyPI
+        uses: https://github.com/JRubics/poetry-publish@v2.0
+        with:
+          pypi_token: ${{ secrets.PYPI_TOKEN }}