fix(deps): update dependency zod to v4.3.4

Author: renovate[bot]

package.json

@@ -34,7 +34,7 @@
     "@octokit/types": "14.1.0",
     "@probot/octokit-plugin-config": "3.0.2",
     "deepmerge": "4.3.1",
-    "zod": "4.0.15"
+    "zod": "4.3.4"
   },
   "devDependencies": {
     "@actions/github": "6.0.1",

yarn.lock

@@ -2052,7 +2052,7 @@ __metadata:
     ts-node: "npm:10.9.2"
     typescript: "npm:5.9.2"
     vitest: "npm:3.2.4"
-    zod: "npm:4.0.15"
+    zod: "npm:4.3.4"
   languageName: unknown
   linkType: soft
 
@@ -2707,9 +2707,9 @@ __metadata:
   languageName: node
   linkType: hard
 
-"zod@npm:4.0.15":
-  version: 4.0.15
-  resolution: "zod@npm:4.0.15"
-  checksum: 10/a91e998d519b697a82e0f5ceea8b9c1e3a2ebc80ef6a275fc71b7f7b052cd4ab45140525c4ba93ad60fa28e0c72dc6f6c326be954aa3f621699b9a2d05fbdf1c
+"zod@npm:4.3.4":
+  version: 4.3.4
+  resolution: "zod@npm:4.3.4"
+  checksum: 10/5d1bd6022bbdb9a0d02be6bd85d72955a8e1a8427b81b4b94a233fa434683e809aff279e69ff054dcfdb010271cb64a4fa9e8af689556292ea2c1a201fb9e033
   languageName: node
   linkType: hard