fix(deps): update dependency zod to v4.5.4

Author: renovate[bot]

package.json

@@ -33,7 +33,7 @@
     "@octokit/types": "16.0.0",
     "@probot/octokit-plugin-config": "4.1.0",
     "deepmerge": "4.3.1",
-    "zod": "4.4.1"
+    "zod": "4.5.4"
   },
   "devDependencies": {
     "@actions/github": "9.1.1",

yarn.lock

@@ -1478,7 +1478,7 @@ __metadata:
     ts-node: "npm:10.9.2"
     typescript: "npm:6.0.3"
     vitest: "npm:4.1.5"
-    zod: "npm:4.4.1"
+    zod: "npm:4.5.4"
   languageName: unknown
   linkType: soft
 
@@ -1901,9 +1901,9 @@ __metadata:
   languageName: node
   linkType: hard
 
-"zod@npm:4.4.1":
-  version: 4.4.1
-  resolution: "zod@npm:4.4.1"
-  checksum: 10/e9c62dc846ed4c6ab5b062ffdc9ac7d38eadc41a921b71015f3a9d9ef6d3448c72ac93beb0015bd33d774e68e804e65840834101296950f5cbd7e3d64973f64c
+"zod@npm:4.5.4":
+  version: 4.5.4
+  resolution: "zod@npm:4.5.4"
+  checksum: 10/b2fd4aaf358359650a1f27f303a462f0f49b4e5582f517ad8894ed566fdceb9da391b59babffe3c70574c8064174883735657eb28e12db5c7021455a631866c4
   languageName: node
   linkType: hard