sqlite-migrate has a FTBFS (#1143374) which brought my attention to
the package again. Looking upstream for a fix, I found that the entire
package is deprecated since July 7th:

https://github.com/simonw/sqlite-migrate
https://github.com/simonw/sqlite-migrate/issues/18

This package was introduced for the llm package, which should now
support sqlite-utils 4 properly. As far as I can tell, llm is the only
rdep of this package, so it should be fine to remove when 0.32rc2 hits
unstable (any minute now).

We believe that the bug you reported is now fixed; the following
package(s) have been removed from unstable:

python-sqlite-migrate | 0.1~beta0-3 | source
python3-sqlite-migrate | 0.1~beta0-3 | all

------------------- Reason -------------------
ROM; deprecated by sqlite-utils 4
----------------------------------------------

Note that the package(s) have simply been removed from the tag
database and may (or may not) still be in the pool; this is not a bug.
The package(s) will be physically removed automatically when no suite
references them (and in the case of source, when no binary references
it).  Please also remember that the changes have been done on the
master archive and will not propagate to any mirrors until the next
dinstall run at the earliest.

Packages are usually not removed from testing by hand. Testing tracks
unstable and will automatically remove packages which were removed
from unstable when removing them from testing causes no dependency
problems. The release team can force a removal from testing if it is
really needed, please contact them if this should be the case.

We try to close bugs which have been reported against this package
automatically. But please check all old bugs, if they were closed
correctly or should have been re-assigned to another package.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1143521@bugs.debian.org.

The full log for this bug can be viewed at https://bugs.debian.org/1143521

This message was generated automatically; if you believe that there is
a problem with it please contact the archive administrators by mailing
ftpmaster@ftp-master.debian.org.

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Thorsten Alteholz (the ftpmaster behind the curtain)