Update @primer/react version and add delay prop to Spinner

Changed the version of @primer/react from patch to minor and added a delay prop to the Spinner component.

Author: jonrohan

.changeset/shaggy-pants-remain.md

@@ -1,5 +1,5 @@
 ---
-"@primer/react": patch
+"@primer/react": minor
 ---
 
 feat(Spinner): Add a delay prop to set how long to wait before rendering the Spinner