OEL-1157: Set Drupal 9.2 as minimum supported version.

...elabel_contact_forms/oe_whitelabel_contact_forms.info.yml

modules/oe_whitelabel_event/oe_whitelabel_event.info.yml

modules/oe_whitelabel_helper/oe_whitelabel_helper.info.yml

modules/oe_whitelabel_news/oe_whitelabel_news.info.yml

modules/oe_whitelabel_search/oe_whitelabel_search.info.yml