Update blog-service/2025-06-17-apps.md

Co-authored-by: Jagadisha V <[email protected]>

Author: amee-sumo

blog-service/2025-06-17-apps.md

@@ -48,7 +48,6 @@ To reinstall the apps, follow the steps below:
 If you’ve created custom content based on CloudTrail fields, manual updates as shown in the below table will be required to accommodate the new schema.
 
 - Shifting the `userName` from the `userIdentity` element to `additionalEventData` element.
-| `principalId` | Removed |
 | `userId`<br/>`identityStoreArn`<br/>`credentialId` | Added under `userIdentity` |
 
 For more information on field changes, see [AWS Security Blog](https://aws.amazon.com/blogs/security/modifications-to-aws-cloudtrail-event-data-of-iam-identity-center/#:~:text=How%20to%20prepare%20your%20workflows%20for%20the%20upcoming%20changes%20to%20IAM%20Identity%20Center%20user%20identification%20in%20CloudTrail).