adding dependabot

.github/dependabot.yml

@@ -0,0 +1,31 @@
+version: 2
+updates:
+  - package-ecosystem: npm
+    directory: /
+    schedule:
+      interval: weekly
+      day: monday
+    open-pull-requests-limit: 10
+    versioning-strategy: auto
+    groups:
+      dev-dependencies:
+        patterns:
+          - '@types/*'
+          - '@antfu/*'
+          - 'eslint*'
+          - typescript
+      production-dependencies:
+        patterns:
+          - '@atproto/*'
+          - '@vercel/*'
+          - '@supabase/*'
+    ignore:
+      - dependency-name: typescript
+        update-types: ['version-update:semver-major']
+
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: weekly
+      day: monday
+    open-pull-requests-limit: 10