[DBMON-6807] Add MariaDB 12 and 13 support

[sethsamuel]

What does this PR do?

• Adds support for MariaDB 12 and 13
• Updates to support main release for 13

Motivation

Review checklist (to be filled by reviewers)

• Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• Add qa/required if this PR needs QA validation, or qa/skip-qa if it does not. Exactly one of the two is required.
• If you need to backport this PR to another branch, you can add the backport/<branch-name> label to the PR and it will automatically open a backport PR once this one is merged

[datadog-official]

 

🎉 All green!

🧪 All tests passed
❄️ No new flaky tests detected

🎯 Code Coverage (details)
• Patch Coverage: 65.22%
• Overall Coverage: 89.51% (+1.10%)

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🔗 Commit SHA: 3a9afab | Docs | Datadog PR Page | Give us feedback!}

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Make the official MariaDB log mount writable

In the new official-image path, ${MYSQL_LOGS_HOST_PATH} is the host-owned TempDir from dd_environment, which is only chmodded to 0770; the official MariaDB entrypoint drops to its internal mysql user after chowning the datadir/socket, not this extra log bind mount. Because the new config forces general and slow logs under /var/log/mysql, the py3.13-mariadb-13 containers on Linux CI cannot create/open mysql.log and mysql_slow.log unless that host directory is made writable for the container user, so the new matrix entry can fail at startup or lose the log collection it is trying to validate.

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[dd-octo-sts]

Validation Report

All 21 validations passed.

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Validation	Description	Status
agent-reqs	Verify check versions match the Agent requirements file	✅
ci	Validate CI configuration and code coverage settings	✅
codeowners	Validate every integration has a CODEOWNERS entry	✅
config	Validate default configuration files against spec.yaml	✅
dep	Verify dependency pins are consistent and Agent-compatible	✅
http	Validate integrations use the HTTP wrapper correctly	✅
imports	Validate check imports do not use deprecated modules	✅
integration-style	Validate check code style conventions	✅
jmx-metrics	Validate JMX metrics definition files and config	✅
labeler	Validate PR labeler config matches integration directories	✅
legacy-signature	Validate no integration uses the legacy Agent check signature	✅
license-headers	Validate Python files have proper license headers	✅
licenses	Validate third-party license attribution list	✅
metadata	Validate metadata.csv metric definitions	✅
models	Validate configuration data models match spec.yaml	✅
openmetrics	Validate OpenMetrics integrations disable the metric limit	✅
package	Validate Python package metadata and naming	✅
qa-label	Validate the pull request declares whether it needs QA for the next Agent release	✅
readmes	Validate README files have required sections	✅
saved-views	Validate saved view JSON file structure and fields	✅
version	Validate version consistency between package and changelog	✅

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[cit-pr-commenter-54b7da]

evalya-impact-summary

evalya impact analysis

Impact analysis: 0 selected, 0 skipped (of 0 test tasks)
Publish tasks:   0 (always emitted)
Diff (10 files):
  .github/workflows/test-all.yml
  mysql/hatch.toml
  mysql/tests/common.py
  mysql/tests/compose/mariadb-official-primary.conf
  mysql/tests/compose/mariadb-official-replica.conf
  mysql/tests/compose/mariadb-official.yaml
  mysql/tests/compose/mariadb_official_primary_initdb/01_replication.sql
  mysql/tests/compose/mariadb_official_replica_initdb/01_replication.sql
  mysql/tests/conftest.py
  mysql/tests/test_query_activity.py

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