ci: avoid flaky emulator animation toggle step

Author: kexuejin

.github/workflows/build.yml

@@ -90,7 +90,7 @@ jobs:
           target: google_apis
           arch: x86_64
           profile: Nexus 6
-          disable-animations: true
+          disable-animations: false
           emulator-options: -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim -camera-back none
           script: |
             if [ -z "${ANDROID_NDK_HOME:-}" ] && [ -d "${ANDROID_SDK_ROOT}/ndk" ]; then