chore: add changeset

Author: caseyisonit

.changeset/seven-nails-wave.md

@@ -0,0 +1,20 @@
+---
+'@spectrum-web-components/button': patch
+'@spectrum-web-components/reactive-controllers': patch
+---
+
+**Fixed** aria-label handling in button components and pending state controller.
+
+**Button component changes:**
+
+- Fixed timing of aria-label updates to occur after slot content changes are processed
+- Added `label` property support for programmatic aria-label control
+- Added comprehensive tests for aria-label behavior during content changes
+
+**PendingState controller changes:**
+
+- Improved aria-label caching logic to better handle dynamic label changes
+- Changed progress circle from `aria-valuetext` to `aria-label` for better accessibility
+- Enhanced caching mechanism to preserve user-set aria-labels during pending states
+
+These changes ensure that aria-labels are properly managed and preserved across component state changes, improving accessibility for screen reader users.