Update TEST_MAPPING am: 2263892f11

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/percent-encoding/+/2411695

Change-Id: Ifebf525c8cad2c0a47577f2a7c2c25d6e4234d09
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>