Add GitHub workflows for generating metrics and contribution snake

.github/workflows/snake.yml

@@ -0,0 +1,24 @@
+name: Generate Contribution Snake
+
+on:
+  schedule:
+    - cron: "0 0 * * *"   # Runs every day at midnight
+  workflow_dispatch:       # Allow manual runs
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: Platane/snk@v3
+        with:
+          github_user_name: Alvin-Zilverstand
+          outputs: dist/snake.svg
+      - name: Push Snake to output branch
+        uses: EndBug/add-and-commit@v9
+        with:
+          branch: output
+          message: "chore: update snake animation"
+          add: "dist/snake.svg"