do not send builds when current build is not on server

Description

This MR purpose is to forbid the ota server from sending any builds when currrently requesting build is not on server

Issue(s)

https://gitlab.e.foundation/e/infra/backlog/-/issues/1432

Test environment

Test procedures

Currently (manually) deployed on ota.eeo.one

curl https://ota.eeo.one/api/v1/FP4/stable/eng.root.20220112.104925 -k

Should send a 1.0-r version

curl https://ota.eeo.one/api/v1/FP4/stable/eng.root.20220112.104922 -k

should not display anything

Technical details

Screenshots

Check list

• Self review
• Test procedure explained
• Tested on fresh install
• Tested applied as an update
• License
• Internal documentation
• User documentation