Added new pipeline to automagicly generate changelogs on pr to main

ref #63

.drone.yml

@@ -61,6 +61,37 @@ trigger:
   event:
     - push
 
+---
+kind: pipeline
+name: pr:generate_changelog
+clone:
+  disable: true
+steps:
+  - name: checkout pr
+    image: alpine/git
+    commands:
+      - git clone $DRONE_REMOTE_URL .
+      - git checkout dev
+  - name: generate changelog
+    image: node:latest
+    commands:
+      - npx auto-changelog --commit-limit false -p -u --hide-credit
+  - name: push new licenses file to repo
+    image: appleboy/drone-git-push
+    settings:
+      branch: dev
+      commit: true
+      commit_message: 🧾New changelog file version [CI SKIP]
+      author_email: bot@odit.services
+      remote: git@git.odit.services:lfk/backend.git
+      ssh_key:
+        from_secret: GITLAB_SSHKEY
+trigger:
+  event:
+    - pull_request
+  branch:
+    - main
+
 ---
 kind: pipeline
 type: docker