Fix build cron type. (#2597)

* Fix Module "test.email_settings" not found.

Co-authored-by: Kruchinin <dmitryx.kruchinin@intel.com>

Dockerfile

@@ -141,6 +141,7 @@ COPY --chown=${USER} ssh ${HOME}/.ssh
 COPY --chown=${USER} supervisord.conf mod_wsgi.conf wait-for-it.sh manage.py ${HOME}/
 COPY --chown=${USER} cvat/ ${HOME}/cvat
 COPY --chown=${USER} utils/ ${HOME}/utils
+COPY --chown=${USER} tests/ ${HOME}/tests
 
 # RUN all commands below as 'django' user
 USER ${USER}

tests/__init__.py

@@ -1,3 +0,0 @@
-# Copyright (C) 2020 Intel Corporation
-#
-# SPDX-License-Identifier: MIT