Configure dependabot for maven packages

Author: jonesbusy

Diff for: .github/dependabot.yml

@@ -1,4 +1,12 @@
-- package-ecosystem: github-actions
-  directory: /
-  schedule:
-    interval: weekly
+# https://help.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: "maven"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"