Dependency update and upping tested to version

Author: thatdevgirl

color-palette/readme.txt

@@ -3,7 +3,7 @@ Contributors: thatdevgirl
 Donate Link: https://www.buymeacoffee.com/thatdevgirl
 Tags: colors, branding, palette, visual identity, block
 Requires at least: 5.0
-Tested up to: 5.8
+Tested up to: 5.9
 Stable tag: 4.1.1
 
 Add a Color Palette block to pages in the post editor.