Func is executed every hour

[fallais]

Func is executed every hour, instead of the given CRON expression.

time="2019-03-11T13:40:27Z" level=info msg="Waiting for birthdays to wish"
time="2019-03-11T14:15:50Z" level=info msg="Birthday to wish !" age=0 firstname=John lastname=Doe
time="2019-03-11T14:15:50Z" level=info msg="Sending the notification" provider_type=SMS provider_vendor=Free
time="2019-03-11T14:15:50Z" level=info msg="Successfully sent the notification" provider_type=SMS provider_vendor=Free
time="2019-03-11T14:15:50Z" level=info msg="Sending the notification" provider_type=Email provider_vendor=Email
time="2019-03-11T14:15:50Z" level=info msg="Successfully sent the notification" provider_type=Email provider_vendor=Email
time="2019-03-11T15:15:50Z" level=info msg="Birthday to wish !" age=0 firstname=John lastname=Doe
time="2019-03-11T15:15:50Z" level=info msg="Sending the notification" provider_type=SMS provider_vendor=Free
time="2019-03-11T15:15:50Z" level=info msg="Successfully sent the notification" provider_type=SMS provider_vendor=Free
time="2019-03-11T15:15:50Z" level=info msg="Sending the notification" provider_type=Email provider_vendor=Email
time="2019-03-11T15:15:50Z" level=info msg="Successfully sent the notification" provider_type=Email provider_vendor=Email
time="2019-03-11T16:15:50Z" level=info msg="Birthday to wish !" age=0 firstname=John lastname=Doe
time="2019-03-11T16:15:50Z" level=info msg="Sending the notification" provider_type=SMS provider_vendor=Free
time="2019-03-11T16:15:50Z" level=info msg="Successfully sent the notification" provider_type=SMS provider_vendor=Free
time="2019-03-11T16:15:50Z" level=info msg="Sending the notification" provider_type=Email provider_vendor=Email
time="2019-03-11T16:15:50Z" level=info msg="Successfully sent the notification" provider_type=Email provider_vendor=Email