added dependabot config

.github/dependabot.yml

@@ -0,0 +1,11 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: "npm"
+    directory: "/"
+    schedule:
+      interval: "weekly"

.github/workflows/dependabot.yaml

@@ -0,0 +1,33 @@
+name: "Dependabot"
+on: pull_request
+
+permissions:
+  contents: write
+  checks: write
+  pull-requests: write
+
+jobs:
+  automerge-dependabot:
+    name: Automerge Dependabot PRs
+    runs-on: ubuntu-latest
+    if: ${{ github.actor == 'dependabot[bot]' || contains(github.head_ref, 'dependabot') }} 
+    steps:
+    - name: Dependabot metadata
+      id: metadata
+      uses: dependabot/fetch-metadata@v1
+      with:
+        github-token: "${{ secrets.GITHUB_TOKEN }}"
+
+    - name: Approve PRs
+      run: gh pr review --approve "$PR_URL"
+      env:
+        PR_URL: ${{github.event.pull_request.html_url}}
+        GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
+
+    - name: Enable auto-merge on PRs
+      if: ${{ steps.metadata.outputs.update-type == 'version-update:semver-patch' || steps.metadata.outputs.update-type == 'version-update:semver-minor' }}
+      run: gh pr merge --auto --merge "$PR_URL"
+      env:
+        PR_URL: ${{github.event.pull_request.html_url}}
+        GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
+