chore: add changeset

Author: jmike

Diff for: .changeset/brown-carpets-obey.md

@@ -0,0 +1,7 @@
+---
+'zod-validation-error': minor
+---
+
+Match `ZodError` via heuristics instead of relying on `instanceof`.
+
+_Why?_ Because we want to ensure that zod-validation-error works smoothly even when multiple versions of zod have been installed in the same project.