Update ueba-enrichments.md

changed line 211 from Every 21 days to every 14 days as per Senior Product PM @javiersoriano ,  . 

Fixes . https://github.com/MicrosoftDocs/azure-docs/issues/91018 

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cc: @yelevin

Author: shashishailaj

articles/sentinel/ueba-enrichments.md

@@ -208,7 +208,7 @@ While the initial synchronization may take a few days, once the data is fully sy
 
 - Group and role information is synchronized between the **IdentityInfo** table and Azure AD daily.
 
-- Every 21 days, Microsoft Sentinel re-synchronizes with your entire Azure AD to ensure that stale records are fully updated.
+- Every 14 days, Microsoft Sentinel re-synchronizes with your entire Azure AD to ensure that stale records are fully updated.
 
 - Default retention time in the **IdentityInfo** table is 30 days.