Add keep-awake cron job

.github/workflows/keep_awake.yml

@@ -0,0 +1,15 @@
+name: Keep Hugging Face Space Awake
+
+on:
+  schedule:
+    # Runs every 5 minutes
+    - cron: '*/5 * * * *'
+  workflow_dispatch: # Allows you to run it manually to test
+
+jobs:
+  ping:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Ping the API
+        run: |
+          curl -I https://jaykay73-resume-optimizer-api.hf.space/