add dependabot config

.github/dependabot.yml

@@ -0,0 +1,22 @@
+version: 2
+updates:
+  - package-ecosystem: "pnpm"
+    directory: "/"
+    schedule:
+      interval: "daily"
+    groups:
+      patch-updates:
+        patterns:
+          - "*"
+        update-types:
+          - "version-update:semver-patch"
+      minor-updates:
+        patterns:
+          - "*"
+        update-types:
+          - "version-update:semver-minor"
+    pull-request-branch-name:
+      separator: "-"
+    ignore:
+      - dependency-name: "*"
+        update-types: ["version-update:semver-major"]