Add Dependabot configuration for Maven and GitHub Actions

Co-authored-by: franz1981 <13125299+franz1981@users.noreply.github.com>

Author: Copilot

.github/dependabot.yml

@@ -0,0 +1,46 @@
+# Dependabot configuration for automatic dependency updates
+# See https://docs.github.com/en/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
+
+version: 2
+updates:
+  # Enable version updates for Maven dependencies
+  - package-ecosystem: "maven"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+      time: "09:00"
+    open-pull-requests-limit: 10
+    labels:
+      - "dependencies"
+      - "maven"
+    commit-message:
+      prefix: "deps"
+      include: "scope"
+    reviewers:
+      - "franz1981"
+    # Group minor and patch updates together
+    groups:
+      maven-minor-patch:
+        patterns:
+          - "*"
+        update-types:
+          - "minor"
+          - "patch"
+
+  # Enable version updates for GitHub Actions
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+      time: "09:00"
+    open-pull-requests-limit: 5
+    labels:
+      - "dependencies"
+      - "github-actions"
+    commit-message:
+      prefix: "ci"
+      include: "scope"
+    reviewers:
+      - "franz1981"