chore(ci): add dependency update action (#864)

Remove Dependabot

Author: szhsin

.github/dependabot.yml

@@ -0,0 +1,18 @@
+name: Dependency update (deplift)
+
+on:
+  schedule:
+    - cron: '0 16 * * 5'
+  workflow_dispatch:
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  update-dependencies:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Update dependencies
+        uses: szhsin/deplift-action@v1