docs(playwrighttesting): CHANGELOG for 1.0.0-beta.2 release for micro…

…soft-playwright-testing (Azure#31075)

### Packages impacted by this PR

@azure/microsoft-playwright-testing

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---------

Co-authored-by: Vansh Vardhan Singh <vanshsingh@microsoft.com>

sdk/playwrighttesting/microsoft-playwright-testing/CHANGELOG.md

@@ -1,14 +1,13 @@
 # Release History
 
-## 1.0.0-beta.2 (Unreleased)
+## 1.0.0-beta.2 (2024-09-12)
 
-### Features Added
-
-### Breaking Changes
+This release updates the Microsoft Playwright Testing library documentation and improves error messages. 
 
 ### Bugs Fixed
 
-### Other Changes
+- Improved handling of Entra ID token expiry so that test runs don't fail intermittently.
+- Optimized retries if reporting API fails with 5xx error
 
 ## 1.0.0-beta.1 (2024-09-09)