chore: update dependabot workflow

Author: Gregor Becker

.github/dependabot.yml

@@ -1,23 +1,12 @@
+# Please see the documentation for all configuration options:
+# https://help.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
 version: 2
 updates:
-- package-ecosystem: composer
-  directory: "/"
-  schedule:
-    interval: daily
-  open-pull-requests-limit: 10
-  ignore:
-  - dependency-name: orchestra/testbench
-    versions:
-    - 6.11.0
-    - 6.12.0
-    - 6.14.0
-    - 6.16.0
-    - 6.9.0
-  - dependency-name: phpunit/phpunit
-    versions:
-    - 9.5.1
-    - 9.5.2
-    - 9.5.3
-  - dependency-name: laravel/framework
-    versions:
-    - 8.25.0
+
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    labels:
+      - "dependencies"

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

@@ -0,0 +1,33 @@
+
+name: dependabot-auto-merge
+on: pull_request_target
+
+permissions:
+  pull-requests: write
+  contents: write
+
+jobs:
+  dependabot:
+    runs-on: ubuntu-latest
+    if: ${{ github.actor == 'dependabot[bot]' }}
+    steps:
+
+      - name: Dependabot metadata
+        id: metadata
+        uses: dependabot/[email protected]
+        with:
+          github-token: "${{ secrets.GITHUB_TOKEN }}"
+
+      - name: Auto-merge Dependabot PRs for semver-minor updates
+        if: ${{steps.metadata.outputs.update-type == 'version-update:semver-minor'}}
+        run: gh pr merge --auto --merge "$PR_URL"
+        env:
+          PR_URL: ${{github.event.pull_request.html_url}}
+          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
+
+      - name: Auto-merge Dependabot PRs for semver-patch updates
+        if: ${{steps.metadata.outputs.update-type == 'version-update:semver-patch'}}
+        run: gh pr merge --auto --merge "$PR_URL"
+        env:
+          PR_URL: ${{github.event.pull_request.html_url}}
+          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}