Add support for CRON report aggregation

Add support for running data aggregation using a CRON scheduled task, rather than the main process in the Matomo container, in order to support large amounts of visits/data.

An example: https://github.com/fagaillard/matomo-openshift

No files or tests are named. Start by inspecting the repository's deployment and container configuration, then identify how the Matomo main process currently handles aggregation. Done means aggregation runs through a CRON-scheduled task rather than the main container process and supports large visit volumes; compare the approach with the linked matomo-openshift example.

Written by the indexing model from the issue text.