Change color of all Wear Toasts

This change updates the color of all Wear Toasts to a new value
to resolve contrast issues between our Material3 colors and our
existing Toasts

Bug: 384097494

Demo: http://b/384097494#attachment62522277

Flag: EXEMPT resource only update
Test: Manual
(cherry picked from https://partner-android-review.googlesource.com/q/commit:c813e59d9ae8d4fa3f128d87517a18c71b608e22)
Change-Id: Iac3feb672818749a7fb71b58437b62be31bfc8f2