composer update -W
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Info from https://repo.packagist.org: #StandWithUkraine
Updating dependencies
Your requirements could not be resolved to an installable set of packages.
Problem 1
- symfony/config[v5.0.0, ..., v5.0.8] require php ^7.2.5 -> your php version (8.1.10) does not satisfy that requirement.
- Root composer.json requires contao/manager-bundle 5.1.* -> satisfiable by contao/manager-bundle[5.1.0].
- Root composer.json requires erdmannfreunde/theme-toolbox 2.3.0 -> satisfiable by erdmannfreunde/theme-toolbox[2.3.0].
- erdmannfreunde/theme-toolbox 2.3.0 requires symfony/config ^5.0 -> satisfiable by symfony/config[v5.0.0, ..., v5.4.19].
- You can only install one version of a package, so only one of these can be installed: symfony/config[v2.2.0, ..., v2.8.52, v3.0.0, ..., v3.4.47, v4.0.0, ..., v4.4.44, v5.0.0, ..., v5.4.19, v6.0.0, ..., v6.2.5].
- Conclusion: install symfony/config v6.1.11 (conflict analysis result)
see also https://github.com/erdmannfreunde/contao-grid-bundle/issues/21