New upstream major release: MariaDB 11.8(.1)

Similar to other new-upstream-release labelled ones, this Merge Request contains the import of a new upstream version of MariaDB.

The reviewer does not need to be a Debian packaging nor a MariaDB expert. All eyeballs on this help improve the quality and decrease the chances of regressions. Feel free to comment on anything you find that looks weird, or if you don't notice anything, then a 'Looks good to me' comment is also useful as a record that another human looked at this without raising any findings.

Do not review merge commits or upstream commits. Focus on commits on the packaging branch modifying contents in debian/:

git log --first-parent --reverse --format='format:* %C(yellow)%h%C(reset) %s' origin/debian/latest...

• 6bdc63b1 Update d/watch for MariaDB 11.8 series
• 7e1cacbf Update upstream source from tag 'upstream/11.8.1'
• 38225c42 Update changelog and refresh patches after 11.8.1 import
• 2b1f831e Update references to 11.4 with 11.8
• 0d4f29f4 Drop 'utf8mb4' config as 'utf8mb4' and 'uca1400_ai_ci' is now default
• 14b6a8cf Include new authentication plugin PARSEC
• 524f9c10 Temporarily disable the new SBOM generation incompatible with Debian
• 32c88a0c Ensure mariadb-server-core can overwrite mariadb-server-compat
• 7433999b Update configuration traces for 11.8(.1)
• f75f2f62 Salsa CI: Use new MySQL signing key
• 7bdf7a8d Salsa CI: Limit ccache size to 3G to avoid builds running out of disk space
• 429fd532 Update Lintian overrides to match the files/lines in MariaDB 11.8
• 11c339a2 Manually strip debug symbols from libmariadbd.a
• 5e56b58d Update changelog for 1:11.8.1-1 release

Changelog:

mariadb (1:11.8.1-1) unstable; urgency=medium

  * New major upstream release candidate MariaDB 11.8, which is going to be the
    next Long-Term Supported (LTS) version. For an overview of what is new in
    the upstream release, see
    https://mariadb.com/kb/en/changes-improvements-in-mariadb-11-8/.
  * Update d/watch for MariaDB 11.8 series
  * Update references to 11.4 with 11.8
  * Drop 'utf8mb4' config as 'utf8mb4' and 'uca1400_ai_ci' is now default
  * Include new authentication plugin PARSEC
  * Temporarily disable the new SBOM generation incompatible with Debian
  * Ensure mariadb-server-core can overwrite mariadb-server-compat
  * Update configuration traces for 11.8(.1)
  * Drop unused dh-exec from libmariadb-dev-compat.links
  * Disable main.view test on sparc64 as it seems permanently failing now
  * Complete and unfuzz all incomplete translations
  * Add Hindi and Korean translations for MariaDB debconf templates
  * Update Lintian overrides/mismatches
  * Manually strip debug symbols from libmariadbd.a
  * Fix incorrect SIGTERM/SIGKILL use in 98c3c0730

Test builds visible at https://launchpad.net/~mysql-ubuntu/+archive/ubuntu/mariadb/+builds?build_text=&build_state=all

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