Fixes for android nightly unit tests

- Fix broken test launcher caused by change in unit test module registry format
- Fix test runner script's ENGINE_ROOT (re-parenting) path caused by move of file to different folder
- Adding step to always perform an android sdk update to latest creating and launching android virtual device (AVD)

scripts/build/Platform/Android/run_test_on_android_simulator.py

@@ -20,7 +20,7 @@ import logging
 
 CURRENT_PATH = pathlib.Path(os.path.dirname(__file__)).absolute()
 
-ENGINE_ROOT = CURRENT_PATH.parent.parent.parent.parent.parent.parent
+ENGINE_ROOT = CURRENT_PATH.parent.parent.parent.parent
 
 
 class AndroidEmuError(Exception):
@@ -194,6 +194,14 @@ class AndroidEmulatorManager(object):
 
         return installed_packages, available_packages, available_updates
 
+    def update_installed_sdks(self):
+        """
+        Run an SDK Manager update to make sure the SDKs are all up-to-date
+        """
+        logging.info(f"Updating android SDK...")
+        self.sdk_manager_cmd.run(['--update'])
+
+
     def install_system_package_if_necessary(self):
         """
         Make sure that we have the correct system image installed, and install if not
@@ -503,6 +511,9 @@ def process_unit_test_on_simulator(base_android_sdk_path, build_path, build_conf
     manager = AndroidEmulatorManager(base_android_sdk_path=base_android_sdk_path,
                                      force_avd_creation=True)
 
+    # Make sure that the android SDK is up to date
+    manager.update_installed_sdks()
+
     # First Install or overwrite the unit test emulator
     manager.install_unit_test_avd()