Create dependabot config file

Author: robertmcnees

.github/dependabot.yml

@@ -0,0 +1,17 @@
+version: 2
+updates:
+
+  - package-ecosystem: "gradle"
+    directories:
+      - "/initial"
+      - "/complete"
+    ignore:
+      - dependency-name: "*"
+        update-types: ["version-update:semver-patch"]
+    schedule:
+      interval: "monthly"
+    target-branch: "main"
+    groups:
+      guide-dependencies-gradle:
+        patterns:
+          - "*"