COMN-324: Create dependabot.yml

Author: juliencherry

.github/dependabot.yml

@@ -0,0 +1,12 @@
+version: 2
+updates:
+  - package-ecosystem: "maven"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    groups:
+      minor-and-patch:
+        applies-to: version-updates
+        update-types:
+        - "patch"
+        - "minor"