add build script

.gitea/workflows/build.yaml

@@ -0,0 +1,20 @@
+on:
+  pull:
+    branches:
+      - main
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@master
+    - name: Install uv
+      uses: astral-sh/setup-uv@v5
+    - name: Set up Python
+      run: uv python install
+    - name: Build package
+      run: uv build
+    - name: Publish package
+        env:
+           USERNAME: ${{ github.repository_owner }}
+      run: run: uv publish --publish-url https://git.theprivateserver.de/api/packages/${USERNAME}/pypi/ -u $USERNAME -p ${{ secrets.PASSWORD }}