DB Migrator Smoke test

CSIT docker compose for db-migrator can be used for this or any other docker compose.

• Check if mariadb-tests.sh and postgres-test.sh have the correct variables.
• Add any extras tests necessary for the test.
• Change the db_migrator_policy_init.sh on db-migrator docker to the *-test.sh file.
• Run docker compose
• Collect logs with docker-compose logs > results.txt
• Tear down compose. Repeat process if necessary.