[TASK] Update TYPO3 CMS to v13 (0.8.x) (major)

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
typo3/cms-core (source)	^12.4 -> ^12.4 || ^13.0
typo3/cms-extbase (source)	^12.4 -> ^12.4 || ^13.0
typo3/cms-fluid (source)	^12.4 -> ^12.4 || ^13.0
typo3/cms-frontend (source)	^12.4 -> ^12.4 || ^13.0

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Warning

Some dependencies could not be looked up. Check the Dependency Dashboard for more information.

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[renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: composer.lock

Command failed: composer update typo3/cms-core:13.3.0 typo3/cms-extbase:13.3.0 typo3/cms-fluid:13.3.0 typo3/cms-frontend:13.3.0 --with-dependencies --ignore-platform-req ext-intl --no-ansi --no-interaction --no-scripts --no-autoloader --no-plugins
Loading composer repositories with package information
Dependency psr/event-dispatcher is also a root requirement. Package has not been listed as an update argument, so keeping locked at old version. Use --with-all-dependencies (-W) to include root dependencies.
Dependency psr/http-message is also a root requirement. Package has not been listed as an update argument, so keeping locked at old version. Use --with-all-dependencies (-W) to include root dependencies.
Dependency psr/log is also a root requirement. Package has not been listed as an update argument, so keeping locked at old version. Use --with-all-dependencies (-W) to include root dependencies.
Dependency symfony/config is also a root requirement. Package has not been listed as an update argument, so keeping locked at old version. Use --with-all-dependencies (-W) to include root dependencies.
Dependency symfony/dependency-injection is also a root requirement. Package has not been listed as an update argument, so keeping locked at old version. Use --with-all-dependencies (-W) to include root dependencies.
Dependency symfony/finder is also a root requirement. Package has not been listed as an update argument, so keeping locked at old version. Use --with-all-dependencies (-W) to include root dependencies.
Dependency typo3fluid/fluid is also a root requirement. Package has not been listed as an update argument, so keeping locked at old version. Use --with-all-dependencies (-W) to include root dependencies.
Dependency symfony/event-dispatcher is also a root requirement. Package has not been listed as an update argument, so keeping locked at old version. Use --with-all-dependencies (-W) to include root dependencies.
Updating dependencies
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - Root composer.json requires typo3/cms-core ^12.4 || ^13.0, found typo3/cms-core[v12.4.0, ..., v12.4.20, v13.0.0, ..., v13.3.0] but these were not loaded, likely because it conflicts with another require.
  Problem 2
    - Root composer.json requires typo3/cms-extbase ^12.4 || ^13.0 -> satisfiable by typo3/cms-extbase[v13.3.0].
    - typo3/cms-extbase v13.3.0 requires symfony/dependency-injection ^7.1.4 -> found symfony/dependency-injection[v7.1.4] but the package is fixed to v6.4.11 (lock file version) by a partial update and that version does not match. Make sure you list it as an argument for the update command.
  Problem 3
    - Root composer.json requires typo3/cms-fluid ^12.4 || ^13.0 -> satisfiable by typo3/cms-fluid[v13.3.0].
    - typo3/cms-fluid v13.3.0 requires symfony/dependency-injection ^7.1.4 -> found symfony/dependency-injection[v7.1.4] but the package is fixed to v6.4.11 (lock file version) by a partial update and that version does not match. Make sure you list it as an argument for the update command.
  Problem 4
    - Root composer.json requires typo3/cms-frontend ^12.4 || ^13.0 -> satisfiable by typo3/cms-frontend[v13.3.0].
    - typo3/cms-frontend v13.3.0 requires typo3/cms-core 13.3.0 -> found typo3/cms-core[v13.3.0] but these were not loaded, likely because it conflicts with another require.
  Problem 5
    - Root composer.json requires cpsit/typo3-handlebars-test-extension 1.0.0 -> satisfiable by cpsit/typo3-handlebars-test-extension[1.0.0].
    - cpsit/typo3-handlebars-test-extension 1.0.0 requires typo3/cms-core * -> found typo3/cms-core[v8.7.7, ..., v8.7.32, v9.0.0, ..., v9.5.31, v10.0.0, ..., v10.4.37, v11.0.0, ..., v11.5.39, v12.0.0, ..., v12.4.20, v13.0.0, ..., v13.3.0] but these were not loaded, likely because it conflicts with another require.
  Problem 6
    - saschaegerer/phpstan-typo3 is locked to version 1.10.2 and an update of this package was not requested.
    - saschaegerer/phpstan-typo3 1.10.2 requires typo3/cms-core ^11.5 || ^12.4 || ^13.0 -> found typo3/cms-core[v11.5.0, ..., v11.5.39, v12.4.0, ..., v12.4.20, v13.0.0, ..., v13.3.0] but these were not loaded, likely because it conflicts with another require.
  Problem 7
    - typo3/testing-framework is locked to version 8.2.1 and an update of this package was not requested.
    - typo3/testing-framework 8.2.1 requires typo3/cms-core 12.*.*@dev || 13.*.*@dev -> found typo3/cms-core[v12.0.0, ..., v12.4.20, v13.0.0, ..., v13.3.0] but these were not loaded, likely because it conflicts with another require.

Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.