Add changelog entry for splitTask export from @wordpress/interactivity (#62805)

* Add changelog entry for splitTask

Add changelog entry for WordPress/gutenberg#62665

* Move changelog entry to Unreleased section

Co-authored-by: Carlos Bravo <[email protected]>

---------

Co-authored-by: Carlos Bravo <[email protected]>

Source: WordPress/gutenberg@1ba8018

Author: westonruter

gutenberg.php

@@ -14,7 +14,7 @@
 
 ### BEGIN AUTO-GENERATED DEFINES
 define( 'GUTENBERG_VERSION', '18.6.0' );
-define( 'GUTENBERG_GIT_COMMIT', 'bfa80e348de376fec78291c0c9599e7f66aed92c' );
+define( 'GUTENBERG_GIT_COMMIT', '1ba8018fd55507bd33d4fd8b64b45377101b73c2' );
 ### END AUTO-GENERATED DEFINES
 
 gutenberg_pre_init();