Autochangelog fix 3

.github/workflows/autochangelog.yml

@@ -0,0 +1,41 @@
+name: Autochangelog
+on: 
+    pull_request_target:
+        types: closed
+        branches:
+            - master
+        
+env:
+    BASENAME: "polaris"
+
+jobs:
+    autochangelog:
+        name: Autochangelog
+        runs-on: ubuntu-16.04
+        if: github.event.pull_request.merged == true
+        steps:
+          - uses: /actions/checkout@v2
+            with:
+                ref: ${{ github.head_ref }}
+          - name: Ensure +x on CI directory
+            run: |
+                chmod -R +x ./tools/ci
+          - uses: actions/setup-python@v2
+            with:
+                python-version: '3.7'
+          - name: Generate Changelog
+            run: |
+                pip install pyyaml
+                python tools/GenerateChangelog/ss13_autochangelog.py \
+                    html/changelogs \
+                    ${{ github.event.pull_request.number }} \
+                    "${{ github.event.pull_request.user.login }}" \
+                    "${{ github.event.pull_request.body }}"
+                python tools/GenerateChangelog/ss13_genchangelog.py \
+                    html/changelog.html \
+                    html/changelogs
+          - uses: stefanzweifel/git-auto-commit-action@v4
+            with:
+                commit_message: Automatic changelog generation for ${{ github.events.pull_request.number }}
+                branch: ${{ github.events.pull_request.base }}
+                commit_user_name: Autochangelog Bot