As argued for on https://no-color.org/

The default log level needs to be initialized before everthing else,
otherwise an error during the option parsing (eg. when an unknown option
is passed) will result in an unessecary stack trace.

When colored text wraps to the next line, the color was only applied
until the end of the line, the text continued on the following line was
reset to default color.

This reapplies the currently used color at the beginning of each wrapped
line, unless it has been properly reset.

Fix color not continued on next line when wrapping text

Update constructor to accept nullable Colors parameter

Add PHP version 8.5 to CI workflow

fix: allow constructor to take nullable colors

The varunsridharan/action-apigen action pulled in apigen 4.1.2, whose
transitive dependency herrera-io/json points at a GitHub source repo
that no longer exists, breaking installs. Replace with phpDocumentor
via phpdocumentor/shim (no PHP version constraints), expose a
"composer docs" script for local previews, and rewrite the workflow
to build and publish to gh-pages on successful test runs.

phpdocumentor/shim cannot be installed across the test matrix's older
PHP versions, so keep composer.json untouched and have the docs
workflow fetch the latest phpDocumentor.phar directly.