Update ghcr.io/element-hq/element-web Docker tag to v1.12.18 (#5223)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

roles/custom/matrix-client-element/defaults/main.yml

@@ -29,7 +29,7 @@ matrix_client_element_container_image_self_build_repo: "https://github.com/eleme
 matrix_client_element_container_image_self_build_low_memory_system_patch_enabled: "{{ ansible_facts['memtotal_mb'] < 4096 }}"
 
 # renovate: datasource=docker depName=ghcr.io/element-hq/element-web
-matrix_client_element_version: v1.12.17
+matrix_client_element_version: v1.12.18
 
 matrix_client_element_container_image: "{{ matrix_client_element_container_image_registry_prefix }}element-hq/element-web:{{ matrix_client_element_version }}"
 matrix_client_element_container_image_registry_prefix: "{{ 'localhost/' if matrix_client_element_container_image_self_build else matrix_client_element_container_image_registry_prefix_upstream }}"