[BUG] Error when indexing pages with field processing instruction categoryUidToHierarchy

[Oktopuce]

Describe the bug
When indexing solr queue with a field processing instruction configured as defined bellow, there is an error :

0: TypeError: ApacheSolrForTypo3\Solr\FieldProcessor\CategoryUidToHierarchy::getSolrRootlineForCategoryId(): Argument #1 ($categoryId) must be of type int, string given, called in /var/www/html/web/typo3conf/ext/solr/Classes/FieldProcessor/CategoryUidToHierarchy.php on line 83 and defined in /var/www/html/web/typo3conf/ext/solr/Classes/FieldProcessor/CategoryUidToHierarchy.php:98
Stack trace:

To Reproduce

1. Set this configuration for the domain hierarchy

plugin.tx_solr {
    index {
        fieldProcessingInstructions {
            domaineHierarchy_stringM = categoryUidToHierarchy
        }
        queue {
            avis = 1
            avis {
                table = tx_myext_domain_model_avis
                fields {
                    domaineHierarchy_stringM = SOLR_RELATION
                    domaineHierarchy_stringM {
                        localField = domaine
                        foreignLabelField = uid
                        multiValue = 1
                      }
                }
            }
        }
    }
}

3. Set the task "Index Queue Worker (solr)" in the BE scheduler
4. Add data to index
5. Run the scheduler indexation task

Expected behavior
Queue should be indexed without error.

Used versions (please complete the following information):

• TYPO3 Version: 11.5.21
• Browser: Chromium
• EXT:solr Version: 11.5.1
• Used Apache Solr Version: 8.11.2
• PHP Version: 8.0.26
• MySQL Version: [e.g. 8.0.0]