Merge pull request #1 from Unity-Technologies/update-airflow-method

update airflow db method in Docker `entrypoint` script, add Codeowners file

Author: christoffer-thrysoe

CODEOWNERS

@@ -0,0 +1 @@
+* @Unity-Technologies/cdsee

composer_local_dev/docker_files/entrypoint.sh

@@ -34,7 +34,7 @@ init_airflow() {
   $run_as_user pip3 install --upgrade -r composer_requirements.txt
   $run_as_user pip3 check
 
-  $run_as_user airflow db migrate
+  $run_as_user airflow db upgrade
 
   # Allow non-authenticated access to UI for Airflow 2.*
   if ! grep -Fxq "AUTH_ROLE_PUBLIC = 'Admin'" /home/airflow/airflow/webserver_config.py; then