Update vectorim/element-web Docker tag to v1.12.13 (#848)

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

Author: renovate[bot]

element/docker-compose.yml

@@ -6,7 +6,7 @@ networks:
 
 services:
   element:
-    image: vectorim/element-web:v1.12.12@sha256:3f031bba174a062d21dcb506662031ce717586c05c03d018063c19470941ac70
+    image: vectorim/element-web:v1.12.13@sha256:5107e63026c13ed014f743e485821b7d4b56d275a41e76303859bb14f5f94eb6
     container_name: element
     restart: unless-stopped
     # ports: