Inconsistent string interpolation between alembic and mautrix-telegram

[serra-allgood]

The password I generated for a telegram postgres role just happened to have a % character in it. I'm assumingalembic uses the old sprintf interpolation syntax because trying to setup the db caused it to throw an error complaining about invalid string interpolation. I was able to work around it by escaping it as %%, but then when starting the bridge, the bridge was unable to auth to postgres because of the extra character. A minor bug, but I felt it worth opening the issue.

[tulir]

Yeah, looks like the URI is passed to alembic through its config thing, which supports variable interpolation.