Deb: Sync Salsa-CI from Debian MariaDB 10.6

As MariaDB 10.5 has been removed from Debian Sid and MariaDB 10.6 has
entered it, the Salsa-CI testing needs to adapt.

To achieve this, essentially sync most the the salsa-ci.yml contents from
https://salsa.debian.org/mariadb-team/mariadb-server/-/tree/debian/latest

This includes removing Stretch builds, as Stretch does not support uring
nor pmem libraries, which MariaDB 10.6 depends on.

Also add a couple Lintian overrides to make Salsa-CI pass.

NOTE TO MERGERS: This commit is made on 10.6 branch and can be merged to
all later branches (10.7, 10.8, 10.9..) for now, but later somebody needs
to go in and update all the testing stages to do the upgrade testing
correctly for 10.6->10.7->10.8->10.9 etc.

debian/source/lintian-overrides

@@ -23,10 +23,10 @@ version-substvar-for-external-package libmariadbd-dev -> libmariadbclient-dev
 # ColumnStore not used in Debian, safe to ignore. Reported upstream in https://jira.mariadb.org/browse/MDEV-24124
 source-is-missing storage/columnstore/columnstore/utils/jemalloc/libjemalloc.so.2
 # Must be fixed upstream
-source-is-missing storage/mroonga/vendor/groonga/examples/dictionary/html/js/jquery-ui-1.8.18.custom.js *
+source-is-missing storage/mroonga/vendor/groonga/examples/dictionary/html/js/jquery-ui-1.8.18.custom.js*
 # Intentional control relationships
-version-substvar-for-external-package Replaces (line 216) ${source:Version} libmariadbd-dev -> libmariadbclient-dev
-version-substvar-for-external-package Replaces (line 66) ${source:Version} libmariadb-dev -> libmysqlclient-dev
-version-substvar-for-external-package Replaces (line 66) ${source:Version} libmariadb-dev -> libmysqld-dev
+version-substvar-for-external-package Replaces * ${source:Version} libmariadbd-dev -> libmariadbclient-dev
+version-substvar-for-external-package Replaces * ${source:Version} libmariadb-dev -> libmysqlclient-dev
+version-substvar-for-external-package Replaces * ${source:Version} libmariadb-dev -> libmysqld-dev
 # We can't change build dependencies on a stable branch (10.5..10.8) so just override this
 missing-build-dependency-for-dh-addon systemd *