Bump 24slides/laravel-saml2 from 2.3.0 to 2.4.0

Bumps [24slides/laravel-saml2](https://github.com/24Slides/laravel-saml2) from 2.3.0 to 2.4.0.
- [Release notes](https://github.com/24Slides/laravel-saml2/releases)
- [Changelog](https://github.com/24Slides/laravel-saml2/blob/master/CHANGELOG.md)
- [Commits](24Slides/laravel-saml2@2.3.0...2.4.0)

---
updated-dependencies:
- dependency-name: 24slides/laravel-saml2
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

composer.json

@@ -22,7 +22,7 @@
  "ext-xml": "*",
  "ext-xsl": "*",
  "ext-zlib": "*",
- "24slides/laravel-saml2": "2.3.0",
+ "24slides/laravel-saml2": "2.4.0",
  "adldap2/adldap2-laravel": "6.1.7",
  "aws/aws-sdk-php": "3.305.4",
  "doctrine/dbal": "3.8.4",