Create dependabot.yml

.github/dependabot.yml

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+# 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/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
+
+version: 2
+
+updates:
+  - package-ecosystem: "cargo"
+    directory: "/"
+    schedule:
+      interval: "daily"
+    rebase-strategy: "auto"
+    open-pull-requests-limit: 1
+    groups:
+      cargo-all-dependencies:
+        applies-to: "version-updates"
+        patterns:
+          - "*"
+      cargo-security-updates:
+        applies-to: security-updates
+        patterns:
+          - "*"
+
+  - package-ecosystem: "npm"
+    directory: "/"
+    schedule:
+      interval: "daily"
+    rebase-strategy: "auto"
+    open-pull-requests-limit: 1
+    groups:
+      npm-all-dependencies:
+        applies-to: "version-updates"
+        patterns:
+          - "*"
+      npm-security-updates:
+        applies-to: security-updates
+        patterns:
+          - "*"

.github/workflows/auto-merge-dependabot.yaml

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+name: Dependabot auto-merge
+on: pull_request
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  dependabot:
+    runs-on: ubuntu-latest
+    if: github.actor == 'dependabot[bot]'
+    steps:
+      - name: Dependabot metadata
+        id: metadata
+        uses: dependabot/fetch-metadata@v2
+        with:
+          github-token: "${{ secrets.GITHUB_TOKEN }}"
+      - name: Enable auto-merge for Dependabot PRs
+        if: contains(steps.metadata.outputs.dependency-names, 'my-dependency') && steps.metadata.outputs.update-type == 'version-update:semver-patch'
+        run: gh pr merge --auto --merge "$PR_URL"
+        env:
+          PR_URL: ${{github.event.pull_request.html_url}}
+          GH_TOKEN: ${{secrets.GITHUB_TOKEN}}