ci: 👷 add drone bump and release pipeline

.drone.yml

@@ -0,0 +1,39 @@
+---
+kind: pipeline
+type: kubernetes
+name: bump version and create release
+steps:
+  - commands:
+      - pip install -U Commitizen
+      - git config --global user.email "drone@dikurium.ch"
+      - git config --global user.name "Drone"
+      - git config --global url."https://$GIT_USERNAME:$GIT_PASSWORD@gitea.dikurium.ch/".insteadOf
+        "https://gitea.dikurium.ch/"
+      - git config --global --add --bool push.autoSetupRemote true
+      - git fetch --tags
+      - cz bump --yes
+      - git push --follow-tags
+      - cz changelog $(cz version -p) > CZ_CURRENT_CHANGELOG.md
+    environment:
+      GIT_PASSWORD:
+        from_secret: git_token
+      GIT_USERNAME:
+        from_secret: git_user
+    image: python:3.12
+    name: bump version and generate changelog
+  - image: gitea.dikurium.ch/innopeak/drone-gitea-release
+    name: create release
+    settings:
+      gitea_password:
+        from_secret: git_token
+      gitea_url: gitea.dikurium.ch
+      gitea_username:
+        from_secret: git_user
+      notes_file: CZ_CURRENT_CHANGELOG.md
+      owner: innopeak
+      repo: gqlgen-contrib
+trigger:
+  branch:
+    - main
+  event:
+    - push