Fix escaping in 'imageOrientation' deprecation message

Curly braces are interpreted as placeholders in l10n messages. For
usage in the message itself we need to escape them (with a single
quote).

See https://formatjs.github.io/docs/intl-messageformat/#message-syntax

Fixed: 399706272
Change-Id: I021155f6214f826abb4df020e77402cc77b8a545
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6309520
Auto-Submit: Simon Zünd <szuend@chromium.org>
Reviewed-by: Ari Chivukula <arichiv@chromium.org>
Commit-Queue: Ari Chivukula <arichiv@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1426205}