Upgrade to GitHub-native Dependabot (#193)

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>
Co-authored-by: Paul Campbell <pcampbell@kemitix.net>

.github/dependabot.yml

@@ -0,0 +1,12 @@
+version: 2
+updates:
+- package-ecosystem: maven
+  directory: "/"
+  schedule:
+    interval: daily
+  open-pull-requests-limit: 10
+  ignore:
+  - dependency-name: com.github.spotbugs:spotbugs-annotations
+    versions:
+    - 4.2.0
+    - 4.2.1