Tests: Update ANDROID_SDK_DATE in Dockerfile to force environment rebuild
Tests: Update ANDROID_SDK_DATE in Dockerfile to force environment rebuild

Change-Id: I44207e74381d0326d0dae5ee94a27ed7cbdcee80

google/iosched,jarekankowski/iosched,google/iosched,WeRockStar/iosched,jarekankowski/iosched,WeRockStar/iosched,google/iosched,WeRockStar/iosched,jarekankowski/iosched