Upgrade toybox to d1acc6e88be52e96e558717805b438c1f46ba529

This project was upgraded with external_updater.
Usage: tools/external_updater/updater.sh update external/toybox
For more info, check https://cs.android.com/android/platform/superproject/+/main:tools/external_updater/README.md

Test: TreeHugger
Change-Id: I53f52ad5298f557db31f660d2156409818941b4d