GLPI 11 compatibility

[Mary-Clb]

No description provided.

[stonebuzz]

Once the suggestions have been applied, please follow these steps:

1. Update the plugin version in the setup.php file to 1.1.0-beta1 (in this pull request) .

2. In a separate pull request, update the centreon.xml file to declare the new version:

<version>
   <num>1.1.0-beta1</num>
   <compatibility>~11.0.0</compatibility>
   <download_url>https://github.com/pluginsGLPI/centreon/releases/download/1.1.0-beta1/glpi-centreon-1.1.0-beta1.tar.bz2</download_url>
</version>

3. Once merged, rebase the feature/glpi-11.0 branch (to gent centreon.xml updated), then create a tag on it:

git checkout feature/glpi-11.0
git fetch origin
git pull --rebase origin main
git push --force-with-lease origin feature/glpi-11.0
git tag 1.1.0-beta1
git push origin refs/tags/1.1.0-beta1

This will trigger the release process, taking into account that it's a beta version.