Add auto update workflow

Copied from https://github.com/HealthScreening/HealthScreeningBot/blob/e90b3a0b8005dc0de5ca31a06d9d92a0784e5783/.github/workflows/auto-update.yml

Author: PythonCoderAS

.github/workflows/auto-update.yml

@@ -0,0 +1,37 @@
+name: Auto NPM Update
+
+# Controls when the workflow will run
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 0 * * *" # Runs every day at midnight
+
+jobs:
+  update:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Setup node
+        uses: actions/setup-node@v3.2.0
+        with:
+          node-version: 18
+      - name: Update dependencies
+        run: npm upgrade
+      - uses: tibdex/github-app-token@v1
+        id: generate-token
+        with:
+          app_id: ${{ secrets.APP_ID }}
+          private_key: ${{ secrets.APP_PRIVATE_KEY }}
+      - name: Create Pull Request
+        uses: peter-evans/create-pull-request@v4
+        with:
+          title: "Auto NPM Update"
+          body: "This PR was created automatically by the Auto NPM Update workflow."
+          signoff: true
+          commit-message: "Update dependencies via `npm upgrade`."
+          branch: "create-pull-request/auto-npm-update"
+          branch-suffix: "timestamp"
+          labels: "auto-npm-update,dependencies,javascript"
+          delete-branch: true
+          token: ${{ steps.generate-token.outputs.token }}