chore: updates changelog

Author: justin-schroeder

changelog/38.v1.6.7.md

@@ -0,0 +1,13 @@
+## 1.6.7
+
+### Sept 18, 2024
+
+## 🐛 Bug Fixes
+* Fixes compatibility with Vue 3.5.6 ([#1501](https://github.com/formkit/formkit/pull/1501))
+* Indicates compatibility with new v4 nuxt ([#1418](https://github.com/formkit/formkit/pull/1418))
+* Fixes casing for the `type` prop of `datetime-local` input ([#1486](https://github.com/formkit/formkit/pull/1486))
+* Keeps placeholder for null or undefined as well ([#1474](https://github.com/formkit/formkit/pull/1474))
+
+## 💪 New features
+
+* New validation rules `date_before_or_equal`, `date_after_or_equal`, `date_before_node`, `date_after_node`