GitHub: Add contributors.yml action (experimental)

.github/workflows/contributors.yml

@@ -0,0 +1,22 @@
+name: Contributors
+on:
+  schedule:
+    - cron: '0 1 * * 0' # At 01:00 on Sunday.
+  push:
+    branches:
+      - develop
+jobs:
+  contributors:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: wow-actions/contributors-list@v1
+        with:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          svgPath: 'assets/static/img/contributors.svg'
+          svgWidth: 800
+          avatarSize: 35
+          avatarMargin: 5
+          affiliation: 'all'
+          round: false
+          sort: true
+          commitMessage: 'CI: Update contributors.svg'