[BUGFIX] Fix sqlite bigint from ext_tables.sql issue

Table sys_messenger_messages introduced with #97700
declares a bigint(20) as primary key in ext_tables.sql.

ext_tables.sql is essentially mysql syntax, the core
SchemaMigrator creates a doctrine object structure
from it, and struggles with bigint on sqlite, found
by a nightly test.

A simple fix is to declare a "casual" int(11), which
should be more than big enough for this table and
is in line with our other "uid" column primary keys
of other tables.

Resolves: #99689
Related: #97700
Releases: main
Change-Id: I5322aefe0f8e9b93015eaf2fb7af1ae8536b94ae
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/77555


Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: core-ci <typo3@b13.com>
Reviewed-by: Susanne Moog <look@susi.dev>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>