chore(picker): add changeset

Author: jawinn

.changeset/hot-books-fail.md

@@ -0,0 +1,13 @@
+---
+"@spectrum-css/picker": major
+---
+
+#### Spectrum 2 migration
+
+Picker now uses Spectrum 2 tokens and specifications. A few notable changes:
+
+- The mod custom property `--mod-line-height-100` has been renamed to `--mod-button-line-height`.
+- The mod custom property `--mod-sans-font-family-stack` has been renamed to `--mod-button-font-family`.
+- The mod custom property `--mod-animation-duration-100` has been renamed to `--mod-button-animation-duration`.
+- The mod custom property `--mod-picker-spacing-text-to-alert-icon-inline-start` has been renamed to `--mod-picker-spacing-text-to-icon-inline-end`. This removed the fallback that was marked as deprecated in a previous version.
+- The mod custom property `--mod-picker-spacing-text-to-icon` has been removed. Use `--mod-picker-spacing-text-to-icon-inline-end` for the spacing between text and visual (indicator or disclosure), or `--mod-picker-spacing-starting-icon-to-text` for the space between the optional workflow icon and the text.