Convert RAW_PTR_EXCLUSION to raw_ptr<T, kUnprotectedInRelease> in components/feedback

This replaces RAW_PTR_EXCLUSION with raw_ptr<T, kUnprotectedInRelease> in
components/feedback to provide better safety in certain builds while avoiding
performance overhead in release builds.

This CL was uploaded by git cl split.

R=jimmyxgong@chromium.org

Bug: 501113069
Change-Id: I80897e1ae42c5507dbfcd6ad2f6ee05dcf8b09de
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/8061508
Auto-Submit: Keishi Hattori <keishi@chromium.org>
Reviewed-by: Jimmy Gong <jimmyxgong@chromium.org>
Commit-Queue: Keishi Hattori <keishi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1659368}
NOKEYCHECK=True
GitOrigin-RevId: a9fc1cbfefd00832903bc1a76fd99f487869af9a