[Android] Replace announceForAccessibility in setNoRetryError

Replaces the deprecated `announceForAccessibility` with
`setAccessibilityPaneTitle` in `CardUnmaskPrompt`.This ensures
accessibility announcements for error messages, as
`TextView.setError` does not trigger explicit announcements.

Before: http://screencast/cast/NjYxMDM5NDIyNjM2MDMyMHw4MDJiNDJhMS1jMQ
After: http://screencast/cast/NDY2ODczNTI3NjE4NzY0OHw3OTc5NjM5MS0zYw

Bug: 376755459
Change-Id: Id3d956a378a81a31964f7272065b1c1a27c288fc
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6278363
Reviewed-by: Timofey Chudakov <tchudakov@google.com>
Commit-Queue: Piotr Kotynia <piotrkotynia@google.com>
Reviewed-by: Theresa Sullivan <twellington@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1423258}