Create dependabot.yml

.github/dependabot.yml

@@ -0,0 +1,26 @@
+version: 2
+
+updates:
+  - package-ecosystem: "maven"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    groups:
+      maven-plugin:
+        patterns:
+          - "org.apache.maven.plugins:*"
+    ignore:
+      # Log4j is provided by Minecraft, so the version should be kept in sync.
+      - dependency-name: "org.apache.logging.log4j:log4j-core"
+    open-pull-requests-limit: 5
+
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    groups:
+      github-actions:
+        patterns:
+          - "*"
+        update-types:
+          - "major"