Add an option to default the macros to unchecked

[lu-zero]

Sometimes keeping a .sqlx cache is just causing lots of churn and while the CI can run the checks against the database the delivery pipeline could be isolated and without database access.

A relatively simple solution is to swap to the unchecked variant only to build the artefact.

Would be something others consider beneficial and upstream would accept a patch in that direction (basically adding an unchecked feature).