Upgrade prometheus branch head

Signed-off-by: Kemal Akkoyun <[email protected]>

go.mod

@@ -73,7 +73,7 @@ replace (
 	// Mitigation for: https://github.com/Azure/go-autorest/issues/414
 	github.com/Azure/go-autorest => github.com/Azure/go-autorest v12.3.0+incompatible
 	// Make sure Cortex is not forcing us to some other Prometheus version.
-	github.com/prometheus/prometheus => github.com/kakkoyun/prometheus v1.8.2-0.20200526163230-72e6e58792fc
+	github.com/prometheus/prometheus => github.com/kakkoyun/prometheus v1.8.2-0.20200528082357-991479dd8b09
 	k8s.io/api => k8s.io/api v0.17.5
 	k8s.io/apimachinery => k8s.io/apimachinery v0.17.5
 	k8s.io/client-go => k8s.io/client-go v0.17.5

go.sum

@@ -617,8 +617,8 @@ github.com/julienschmidt/httprouter v1.3.0 h1:U0609e9tgbseu3rBINet9P48AI/D3oJs4d
 github.com/julienschmidt/httprouter v1.3.0/go.mod h1:JR6WtHb+2LUe8TCKY3cZOxFyyO8IZAc4RVcycCCAKdM=
 github.com/jung-kurt/gofpdf v1.0.3-0.20190309125859-24315acbbda5/go.mod h1:7Id9E/uU8ce6rXgefFLlgrJj/GYY22cpxn+r32jIOes=
 github.com/jwilder/encoding v0.0.0-20170811194829-b4e1701a28ef/go.mod h1:Ct9fl0F6iIOGgxJ5npU/IUOhOhqlVrGjyIZc8/MagT0=
-github.com/kakkoyun/prometheus v1.8.2-0.20200526163230-72e6e58792fc h1:Jhd0fKFm4M+bRAm0ToCQ9owrTRlYAUBTENaPv9zMFS0=
-github.com/kakkoyun/prometheus v1.8.2-0.20200526163230-72e6e58792fc/go.mod h1:QKHYbx8sTY1fj75M+lL+LhzDSFM00+dOBlFn5wBi+14=
+github.com/kakkoyun/prometheus v1.8.2-0.20200528082357-991479dd8b09 h1:MDXiGY+C6DQsJlgLyb2Gl39NZPkn3AGY0pt/hP4tjw8=
+github.com/kakkoyun/prometheus v1.8.2-0.20200528082357-991479dd8b09/go.mod h1:QKHYbx8sTY1fj75M+lL+LhzDSFM00+dOBlFn5wBi+14=
 github.com/kardianos/osext v0.0.0-20190222173326-2bc1f35cddc0/go.mod h1:1NbS8ALrpOvjt0rHPNLyCIeMtbizbir8U//inJ+zuB8=
 github.com/karrick/godirwalk v1.8.0/go.mod h1:H5KPZjojv4lE+QYImBI8xVtrBRgYrIVsaRPx4tDPEn4=
 github.com/karrick/godirwalk v1.10.3/go.mod h1:RoGL9dQei4vP9ilrpETWE8CLOZ1kiN0LhBygSwrAsHA=