sd: Fix stuck Azure service discovery (#5088)
sd: Fix stuck Azure service discovery (#5088)

Signed-off-by: Sylvain Rabot <cd2ddbfaad971978dc9dc611bca495388b8445c3@lectra.com>
Gouthamve/prometheus,Gouthamve/prometheus,prometheus/prometheus,keegancsmith/prometheus,alileza/prometheus,keegancsmith/prometheus,alileza/prometheus,prometheus/prometheus,GoogleCloudPlatform/prometheus,GoogleCloudPlatform/prometheus,prometheus/prometheus,kangwoo/prometheus,keegancsmith/prometheus,keegancsmith/prometheus,kangwoo/prometheus,prometheus/prometheus,keegancsmith/prometheus,alileza/prometheus,Gouthamve/prometheus,kangwoo/prometheus,Gouthamve/prometheus,alileza/prometheus,prometheus/prometheus,GoogleCloudPlatform/prometheus,alileza/prometheus,kangwoo/prometheus,GoogleCloudPlatform/prometheus,GoogleCloudPlatform/prometheus