feat: add Drone configuration file

.drone.yml

@@ -0,0 +1,45 @@
+---
+kind: pipeline
+type: docker
+name: amd64-main
+
+platform:
+  os: linux
+  arch: amd64
+
+trigger:
+  branch:
+    - main
+  event:
+    - push
+    - pull_request
+
+steps:
+  - name: build
+    image: sphinxdoc/sphinx-latexpdf:5.0.2
+    commands:
+      - apt-get update
+      - apt-get -y install texlive-lang-german rsync
+      - pip install -r requirements.txt
+      - make -j4 latexpdf
+  - name: upload
+    image: alpine
+    environment:
+      NC_USER:
+        from_secret: nextcoud_user
+      NC_PASSWORD:
+        from_secret: nextcloud_password
+    commands:
+      - apt add curl
+      - curl -X PUT -u $NC_USER:$NC_PASSWORD https://work.wtf-eg.de/remote.php/dav/files/$NC_USER/FreeFleetManagement/FFFleet%20Handbuch.pdf -T bundle/latex/rtfm-dashandbuchderfreefederatedfleetfffleetinitiative.pdf
+    when:
+      branch:
+        - main
+      event:
+        - push
+
+---
+kind: signature
+hmac: 7225cd21b9a1284bba09bd0f943e5873865f176e1dca49147ea8e309421e6726
+
+...