Prepare upload of MariaDB 11.8.2 to Debian unstable

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

Do not review merge commits or upstream commits, but focus on the ones that are made only on the proposed debian/latest branch update in this MR:

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

• d32a7843 Update upstream source from tag 'upstream/11.8.2'
• c7dcc27c Update changelog and refresh patches after 11.8.2 import
• b4fb71dd Update server trace to include new parameters and values
• 00ffd7fb Disable new unreliable test main.mysql-interactive
• 8d6541eb Add Breaks/Replaces for files moved around in src:mysql-8.4 (LP: #2110378)
• 50bb52db Update documentation on how to run deb-check-file-conflicts
• 1920be8f Update changelog

Changelog:

mariadb (1:11.8.2-1) UNRELEASED; urgency=medium

  * New upstream version 11.8.2, which also announces the 11.8 series now
    ready for general availability (GA) with security releases for 5 years.
    This release includes fixes for several defects as noted at
    https://mariadb.com/kb/en/mariadb-11-8-2-release-notes/ as well
    the following security issues:
    - CVE-2023-52969
    - CVE-2023-52970
    - CVE-2023-52971
    - CVE-2025-30693
    - CVE-2025-30722
  * Drop all RocksDB patches now upstream due to update to version 6.29fb
  * Drop PCRE2 10.45 compatibility patch obsoleted by upstream test change
  * Update configuration traces to include new upstream system variables:
    - innodb-buffer-pool-size-auto-min (default: 0)
    - innodb-buffer-pool-size-max (default: 0)
    - innodb-log-checkpoint-now (default: FALSE)
  * Also update configuration traces to match that in 11.8.2 the variables
    innodb-buffer-pool-chunk-size and innodb-log-spin-wait-delay are advertised
    as deprecated.
  * Disable new unreliable test main.mysql-interactive
  * Add Breaks/Replaces for files moved around in src:mysql-8.4 (LP: #2110378)

I am not aware of any open Debian tracked bugs at https://bugs.debian.org/cgi-bin/pkgreport.cgi?repeatmerged=no&src=mariadb that would be fixed by this version.

Note also test builds on multiple architectures at https://launchpad.net/~mysql-ubuntu/+archive/ubuntu/mariadb/+builds?build_text=&build_state=all

Note that once this is merged, also !115 (merged) will be rebased and merged on debian/latest before uploading to Debian unstable (targeting Debian 13 "Trixie").