[PriceTracking] Add render tests for price card view

Bug: 1297341
Change-Id: I4e3c4766226b562e988aaa4e434bdc6478146ae4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3489510


Reviewed-by: Yue Zhang <yuezhanggg@chromium.org>
Commit-Queue: Zhiyuan Cai <zhiyuancai@chromium.org>
Cr-Commit-Position: refs/heads/main@{#975194}