Have the Synapse healthcheck be more patient to accommodate slow servers

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

@@ -375,7 +375,7 @@ matrix_synapse_goofys_systemd_required_services_list_custom: []
 # This relies on the container image's built-in HEALTHCHECK (curl to /health),
 # with the interval controlled by matrix_synapse_container_health_interval.
 matrix_synapse_systemd_healthcheck_enabled: true
-matrix_synapse_systemd_healthcheck_max_retries: 60
+matrix_synapse_systemd_healthcheck_max_retries: 180
 matrix_synapse_systemd_healthcheck_interval_seconds: 1
 
 # The command used for the health check in ExecStartPost.