Change use of "airflow db upgrade" from Astro CLI in preparation of 3.0

[iancmoritz]

The "airflow db upgrade" command is being deprecated as of 2.7. When possible, we need a strategy to replace its use with "airflow db migrate".

From the CLI side, it's referenced in at least one place here:

astro-cli/airflow/include/composeyml.yml

Line 52 in 2a30180

bash -c "(airflow db upgrade || airflow upgradedb) && airflow scheduler"

To close this ticket:

• Define a strategy for using airflow db migrate for versions 2.7 and beyond
• Confirm there aren't any other uses of this command in CLI for these versions
• If there are, remove and replace those too.