Ignore Zod v4 for MCP SDK compatibility

Author: IzumiSy

.github/dependabot.yaml

@@ -5,3 +5,7 @@ updates:
     schedule:
       interval: weekly
       timezone: Asia/Tokyo
+    ignore:
+      - dependency-name: "zod"
+        versions:
+          - ">=4.0.0"

package.json

@@ -38,7 +38,7 @@
     "@duckdb/node-api": "1.4.1-r.4",
     "@modelcontextprotocol/sdk": "^1.20.1",
     "fuse.js": "^7.1.0",
-    "zod": "^4.1.5"
+    "zod": "^3"
   },
   "devDependencies": {
     "@changesets/cli": "^2.28.1",