Fix console output styling that broke in Symfony 8

[damiani]

A change in Symfony 8, which we added support for in v1.8.6, caused styling tags to be output literally to the console.

• In Symfony Console 7, overwrite() always clears the section and calls writeln(), which runs text through the formatter.
• In Symfony Console 8, when the section already has content and output is decorated, overwrite() follows a different path: it stores the raw string in the section buffer and writes it with parent::doWrite() without going through Output::write(), bypassing the formatter.

To solve this, this PR preformats text sections before sending them to overwrite().