chore: setup dependabot (#8)

Author: lusu007

.github/dependabot.yml

@@ -0,0 +1,30 @@
+version: 2
+updates:
+  # Gradle dependencies and wrapper
+  - package-ecosystem: "gradle"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+    open-pull-requests-limit: 5
+    commit-message:
+      prefix: "fix"
+    groups:
+      fabric:
+        patterns:
+          - "fabric-loom"
+          - "net.fabricmc:*"
+          - "net.fabricmc.fabric-api:*"
+      minecraft:
+        patterns:
+          - "com.mojang:minecraft"
+
+  # GitHub Actions
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+    open-pull-requests-limit: 5
+    commit-message:
+      prefix: "chore"