Update GPay logo color - Phase 2

Update GPay logo colors for the "Pay" portion. This change affects the
GPay and Pix combined asset in the light-mode only. The dark-mode asset
already has the right colors.

Before: https://screenshot.googleplex.com/7Q8uBLoySLUAmg9.png
After: https://screenshot.googleplex.com/BNdZudeuoXEvt4b.png

Fixed: 392908491, 392914866
Change-Id: Ia2d95c97cbea6b48660f6b0aeded32d701a4abc4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6208252
Reviewed-by: Siddharth Shah <siashah@chromium.org>
Commit-Queue: Vishwas Uppoor <vishwasuppoor@google.com>
Cr-Commit-Position: refs/heads/main@{#1415149}