ci: add drone config

.drone.yml

@@ -0,0 +1,29 @@
+---
+
+kind: pipeline
+type: docker
+name: default
+
+steps:
+  - name: build
+    image: python:3.12-alpine
+    commands:
+      - pip install poetry
+      - poetry build
+    when:
+      event:
+        - pr
+        - push
+
+  - name: build and publish
+    image: python:3.12-alpine
+    commands:
+      - pip install poetry
+      - poetry publish --build --repository git.luj0ga.de
+    environment:
+      POETRY_PYPI_TOKEN_git.luj0ga.de:
+        from_secret: repo_token
+      POETRY_REPOSITORIES_git.luj0ga.de_URL: https://git.luj0ga.de/api/packages/kontakt/pypi
+    when:
+      event:
+        - tag