(Azure CXP) Factual Error

Updated line 157 from **General availability** to **Public Preview** as the item currently is in public preview as per https://docs.microsoft.com/en-us/azure/active-directory/manage-apps/access-panel-workspaces 

Closes MicrosoftDocs/azure-docs#44468
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cc: @eross-msft

Author: shashishailaj

articles/active-directory/fundamentals/whats-new.md

@@ -154,7 +154,7 @@ For more information, see [Change request and approval settings for an access pa
 
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-### Updates to the My Apps page along with new workspaces (General Availability)
+### Updates to the My Apps page along with new workspaces (Public Preview)
 
 **Type:** New feature  
 **Service category:** My Apps