chore: add changeset for verfication support in Ignition

Author: kanej

.changeset/breezy-jars-dress.md

@@ -0,0 +1,7 @@
+---
+"@nomicfoundation/ignition-core": patch
+"@nomicfoundation/hardhat-ignition": patch
+"@nomicfoundation/hardhat-verify": patch
+---
+
+Add `--verify` option for Ignition deploy task to verify all contracts of a deployment ([#6817](https://github.com/NomicFoundation/hardhat/issues/6817))