Add Maven support to Dependabot configuration

Added Maven package ecosystem to Dependabot configuration.

Author: anshumanjadiya1102

.github/dependabot.yml

@@ -1,10 +1,16 @@
 version: 2
 updates:
-  - package-ecosystem: "pip"
-    directory: "/"
+  - package-ecosystem: "maven"
+    directory: "/"            # pom.xml is at repository root
     schedule:
-      interval: "weekly"
+      interval: "weekly"     # change to "daily" or "monthly" if you prefer
+    open-pull-requests-limit: 5
+    labels:
+      - "dependencies"
   - package-ecosystem: "github-actions"
-    directory: "/"
+    directory: "/"            # workflows in .github/workflows
     schedule:
       interval: "weekly"
+    open-pull-requests-limit: 5
+    labels:
+      - "github-actions"