build(chrome): update the pinned browser version to 139.0.7257.0 (#3516)

Automatically generated by
https://github.com/GoogleChromeLabs/chromium-bidi/blob/main/.github/workflows/update-browser-version.yml

This requires some manual work:
1. Review and approve the PR.
1. Approve and run workflows.
1. Update WPT or e2e expectations and file issues if there was
regression.
1. Merge the PR.

Co-authored-by: Maksim Sadym <[email protected]>

Author: browser-automation-bot

.browser

@@ -1 +1 @@
-[email protected].7256.0
+[email protected].7257.0