ci: 🔐 Add dependabot

Signed-off-by: Jonas Strassel <[email protected]>

.github/dependabot.yml

@@ -0,0 +1,32 @@
+version: 2
+updates:
+  # update grouped dev-dependencies monthly
+  - package-ecosystem: "npm"
+    directory: /
+    schedule:
+      interval: "monthly"
+    groups:
+      dev:
+        applies-to: version-updates
+        dependency-type: development
+    ignore:
+      - dependency-name: "viem"
+
+  # check for viem updates daily
+  - package-ecosystem: "npm"
+    directory: /
+    schedule:
+      interval: "daily"
+    allow:
+      - dependency-name: "viem"
+        dependency-type: "direct"
+
+  # update all actions weekly
+  - package-ecosystem: "github-actions"
+    directory: /
+    schedule:
+      interval: "weekly"
+    groups:
+      "github-actions":
+        applies-to: version-updates
+        dependency-type: development