[debian-mysql] Bug#1035949: mariadb: upgrade issue: mariadb-server-10.5 fails to stop after all other -10.5 packages were removed

[Otto Kekäläinen]

I adjusted your patch a bit as it didn't apply cleanly and pushed it
to https://salsa.debian.org/mariadb-team/mariadb-server/-/merge_requests/47
to replace the transitional mariadb-client-10.5 I had earlier.

Thanks for diving deep in piuparts testing for MariaDB 10.11 and for the patch!

Ideally the CI itself had all the install/upgrade scenarios that are
relevant. Contributions to the debian/salsa-ci.yml file are also very
welcome!