Requested month is -1

Correct api return. When we query for september (9) we should get september as reply an not august

https://ecolyo-agent.self-data.alpha.grandlyon.com/api/common/monthlyReport/2021/9

https://ecolyo-agent.self-data.alpha.grandlyon.com/api/common/monthlyReport/2021/8

assigned to @rpailharey

changed the description

created merge request !6 (merged) to address this issue

mentioned in merge request !6 (merged)

mentioned in merge request backoffice-client!14 (merged)

mentioned in commit 6eb63808

closed with merge request !6 (merged)