Add strict_mode: false

As strict mode is in place, the default strict_mode is now set to true. We are encourage teams to write tests in strict_mode to make tests Bivalent (able to run on device and devicelessly)

Ignore-AOSP-First: Due to merge conflict, will merge in git_main first then AOSP.
Test: atest ServiceBluetoothRoboTests
Bug: 334089788
Change-Id: I921c7061b900c9197c7003ac22c2a6bc12e17d27