Pull Requests: Add closed date

[N-o-Z]

Closes #8222

Change Description

Add close date to pull request

Testing Details

Added unit tests

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:recycle: PR Preview ad5838ea6fc9eadedf4c269033439d7517f0ffb4 has been successfully destroyed since this PR has been closed.

_{🤖 By surge-preview}

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E2E Test Results - DynamoDB Local - Local Block Adapter

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E2E Test Results - Quickstart