[fix] Add schema validation for metrics

5 jobs for kwollectgen in 3 minutes and 56 seconds
Status Job ID Name Coverage
  Validate
passed #575148
grid5000-docker
rubocop

00:00:34

passed #575149
grid5000-docker
validate-data

00:01:18

 
  Generate
passed #575150
grid5000-docker
generate-reference-api

00:01:14

 
  Deploy
passed #575151
grid5000-shell
deploy

00:00:07

passed #575152
grid5000-docker
rspec

00:01:22