Update dock.mau.dev/mautrix/whatsapp Docker tag to v0.12.3

Author: renovate[bot]

roles/custom/matrix-bridge-mautrix-whatsapp/defaults/main.yml

@@ -28,7 +28,7 @@ matrix_mautrix_whatsapp_container_image_self_build_repo: "https://mau.dev/mautri
 matrix_mautrix_whatsapp_container_image_self_build_branch: "{{ 'master' if matrix_mautrix_whatsapp_version == 'latest' else matrix_mautrix_whatsapp_version }}"
 
 # renovate: datasource=docker depName=dock.mau.dev/mautrix/whatsapp
-matrix_mautrix_whatsapp_version: v0.12.2
+matrix_mautrix_whatsapp_version: v0.12.3
 
 # See: https://mau.dev/mautrix/whatsapp/container_registry
 matrix_mautrix_whatsapp_docker_image: "{{ matrix_mautrix_whatsapp_docker_image_registry_prefix }}mautrix/whatsapp:{{ matrix_mautrix_whatsapp_version }}"