chore: add dependabot settings

Author: jay-es

.github/dependabot.yml

@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: "npm"
+    directory: "/"
+    schedule:
+      interval: "daily"

.github/workflows/auto-merge.yml

@@ -0,0 +1,15 @@
+name: auto-merge
+
+on:
+  pull_request:
+
+jobs:
+  auto-merge:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: ahmadnassri/action-dependabot-auto-merge@v2
+        with:
+          target: minor # includes patch updates
+          github-token: ${{ secrets.DEPENDABOT_AUTO_MERGE }}
+          command: "squash and merge"