feat(qemu): support two CD/DVD images and consistent ISO handling

gns3server/db/tasks.py

@@ -140,12 +140,16 @@ async def connect_to_db(app: FastAPI) -> None:
                     def upgrade_inventory(connection):
                         from alembic.operations import Operations
 
+                        from gns3server.db_migrations.versions.a6c8e1b2d490_add_second_qemu_cdrom import (
+                            upgrade as upgrade_cdrom,
+                        )
                         from gns3server.db_migrations.versions.d9e8a2b7c401_image_inventory_reconciliation import (
                             upgrade,
                         )
 
                         with Operations.context(MigrationContext.configure(connection)):
                             upgrade()
+                            upgrade_cdrom()
 
                     await conn.run_sync(upgrade_inventory)
                     await conn.run_sync(run_stamp, alembic_cfg)