Merge pull request #228 from checkly/sync-playwright-reporter-changelog-v1.9.0

docs: sync Playwright Reporter changelog v1.9.0

Author: pilimartinez

detect/testing/playwright-reporter-changelog.mdx

@@ -13,6 +13,12 @@ Learn more about:
 
 ## Full release history
 
+<Update label="v1.9.0" tags={["March 2026"]}>
+  **Improved**
+
+  - **Faster secret scrubbing** — Trace scrubbing now runs in parallel across CPU cores and the scrubbing engine has been optimized to skip unnecessary work, making the reporter noticeably faster for test suites with traces enabled.
+</Update>
+
 <Update label="v1.8.0" tags={["March 2026"]}>
   **Breaking Changes**