[BUGFIX] Raise doctrine/dbal:^2.13.8

This patch raises doctrine/dbal to 2.13.8 as minimum version,
which contains a bugfix to avoid a native php error is emitted,
stating "mysqli::real_connect(): Passing null to parameter #7".

See: https://github.com/doctrine/dbal/pull/5296

One phpstan ignore pattern slightly changed because of a
changed return type declarion of doctrine/dbal. Tackling
the corresponding error should be done in a dedicated test
after proper investigation.

Used commands:

> composer req doctrine/dbal:^2.13.8
> composer req doctrine/dbal:^2.13.8 \
  -d typo3/sysext/core --no-update
> composer req doctrine/dbal:^2.13.8 \
  -d typo3/sysext/install --no-update
> composer req doctrine/dbal:^2.13.8 \
  -d typo3/sysext/redirects --no-update
> composer req doctrine/dbal:^2.13.8 \
  -d typo3/sysext/core --no-update
> Build/Scripts/runTests.sh -s phpstanGenerateBaseline

Resolves: #97222
Releases: 11.5
Change-Id: I6c1712a792780bd2966b3977d43f767e59304bd5
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/74013


Tested-by: core-ci <typo3@b13.com>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Benni Mack <benni@typo3.org>