They might have already run migration 19 from 8d05c654

Fixes https://github.com/turt2live/matrix-media-repo/issues/426

see 1168a7f6

To identify which of them deadlocks on close.

see https://github.com/testcontainers/testcontainers-go/issues/1367#issuecomment-1674344051

see 293c20bd

and Go creates them as 0600