Update ghcr.io/devture/matrix-corporal Docker tag to v3.1.6

roles/custom/matrix-corporal/defaults/main.yml

@@ -16,7 +16,7 @@
 matrix_corporal_enabled: true
 
 # renovate: datasource=docker depName=ghcr.io/devture/matrix-corporal
-matrix_corporal_version: 3.1.5
+matrix_corporal_version: 3.1.6
 
 matrix_corporal_container_image_self_build: false
 matrix_corporal_container_image_self_build_repo: "https://github.com/devture/matrix-corporal.git"