[Hotfix] cleanup mr !324 mount vhostd dir correctly, enforce https for scrape jobs

mount vhost.d correctly on signalboost prod

• symptoms:
  • prometheus returning no data from signald scrape job
  • ngix logs show: 4132 no live upstreams while connecting to upstream, client: REDACTED, server: signald.signalboost.info
• suspected cause: metrics docker compose vhost.d ip whitelisting works because we mount a volume from the filesystem instead of using a named volume, but in signalboost prod configs we still use a (vestigal) named volume from example configs
• attemped fix: mount the vhost.d directory from the repo instead of using the named volume

specify https scheme in prometheus_prod.yml configs

• this fixes a longstanding unnoticed bug in which we shipped our prometheus scrape job configs to use the default scheme (which is http) instead of explicitly specifying https

changed title from Hotfix cleanup mr 324 mount vhostd dir correctly, enforce https to [Hotfix] cleanup mr !324 mount vhostd dir correctly, enforce https for scrape jobs

changed the description

enabled an automatic merge when the pipeline for dd8ede2f succeeds

merged

mentioned in commit f611d14c

mentioned in commit 77f01fb4

mentioned in merge request !326 (merged)

mentioned in commit 76ea6d8f