Use upstream image for apache-exporter

[lobis]

Currently using rucio/apache-exporter that has not been updated in the last 5 years at the time of writing.

Find out what customizations this image has over the upstream version and find out if we can just use the upstream exporter bitnami/apache-exporter.

[labkode]

@lobis try https://github.com/reproducible-containers/diffoci