Fix pipeline related errors

gradesa/.env.test

@@ -1,5 +1,5 @@
-DB_HOST=localhost
-DB_PORT=7741
+DB_HOST=pgtestdb
+DB_PORT=5432
 DB_USER=postgres
 DB_PASSWORD=password
 DB_NAME=postgres

gradesa/data/migrate.sh

@@ -31,9 +31,6 @@ fi
 # a difference between the schema file and the actual schema in the database
 
 # Create a temporary schema file inside the container
-docker exec gradesa-db sh -c "pgmigrate dump -d postgres://ohtu:password@localhost:5432/gradesa --out /tmp/schema.sql"
+pgmigrate dump -d $DB_URL --out schema.sql
 
-# Copy the schema file from the container to the local directory
-docker cp gradesa-db:/tmp/schema.sql ./schema.sql
 echo "Dumping done"
-