Revert Zod change

Author: gonzaloriestra

configurations/vitest/setup.js

@@ -1,4 +1,5 @@
 import {expect} from 'vitest'
+import {z} from 'zod'
 
 process.env.SHOPIFY_UNIT_TEST = '1'
 process.removeAllListeners('warning')
@@ -7,9 +8,8 @@ process.removeAllListeners('warning')
 // https://github.com/vitest-dev/vitest/issues/7315#issuecomment-2606572923
 expect.addEqualityTesters([
   function (a, b) {
-    // Lazy check for ZodError to avoid importing zod eagerly
-    const aOk = a?.constructor?.name === 'ZodError' && 'issues' in a
-    const bOk = b?.constructor?.name === 'ZodError' && 'issues' in b
+    const aOk = a instanceof z.ZodError
+    const bOk = b instanceof z.ZodError
     if (aOk && bOk) {
       return this.equals(a.message, b.message) && this.equals(a.issues, b.issues)
     }

package.json

@@ -77,7 +77,8 @@
     "tmp": "^0.2.5",
     "ts-node": "^10.9.1",
     "typescript": "5.9.3",
-    "vitest": "^3.1.4"
+    "vitest": "^3.1.4",
+    "zod": "3.24.4"
   },
   "workspaces": {
     "packages": [