ingest pergamon apache logs

There are a bunch of apache sites hosted or reverse-proxied(?) by pergamon but the logs are not sent to ELK. They should to have some visibility on their behavior / usage

This is the list of the services:

• icinga
• debian.internal.softwareheritage.org
• annex.softwareheritage.org
• docs.softwareheritage.org
• puppet
• stats.export.softwareheritage.org (to deprecate)
• icinga.softwareheritage.org
• grafana.softwareheritage.org
• sentry.softwareheritage.org
• bitbucket-archive.softwareheritage.org

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Migrated from T3718 (view on Phabricator)