chore(deps): update dependency drupal/gin to v4

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
drupal/gin (source)	^3.0@RC -> ^4.0.1@RC

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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 drupal/gin:4.0.1 --with-dependencies --ignore-platform-req='ext-*' --ignore-platform-req='lib-*' --no-ansi --no-interaction --no-scripts --no-autoloader --no-plugins
Loading composer repositories with package information
Dependency drupal/gin_toolbar 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.
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Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - Root composer.json requires drupal/gin ^4.0.1@RC -> satisfiable by drupal/gin[4.0.1].
    - drupal/gin 4.0.1 requires drupal/gin_toolbar ^2.0 -> found drupal/gin_toolbar[2.0.0] but it conflicts with your root composer.json require (^1.0@RC).
  Problem 2
    - drupal/diff is locked to version 2.0.0-beta3 and an update of this package was not requested.
    - caxy/php-htmldiff v0.1.15 requires ezyang/htmlpurifier ^4.7 -> satisfiable by ezyang/htmlpurifier[v4.17.0].
    - drupal/diff 2.0.0-beta3 requires mkalkbrenner/php-htmldiff-advanced ~0.0.8 -> satisfiable by mkalkbrenner/php-htmldiff-advanced[0.0.8].
    - ezyang/htmlpurifier v4.17.0 requires php ~5.6.0 || ~7.0.0 || ~7.1.0 || ~7.2.0 || ~7.3.0 || ~7.4.0 || ~8.0.0 || ~8.1.0 || ~8.2.0 || ~8.3.0 -> your php version (8.4.2) does not satisfy that requirement.
    - mkalkbrenner/php-htmldiff-advanced 0.0.8 requires caxy/php-htmldiff >=0.0.6 -> satisfiable by caxy/php-htmldiff[v0.1.15].

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