Updated Prometheus as little as possible to include Isolation fix.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

Author: bwplotka

go.mod

@@ -72,7 +72,7 @@ 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/prometheus/prometheus v1.8.2-0.20200407102557-cd73b3d33e06 // @cd73b3d33e064bbd846fc7a26dc8c313d46af382 (after v2.17.0 and before v2.18.0).
+	github.com/prometheus/prometheus => github.com/prometheus/prometheus v1.8.2-0.20200420120812-fc3fb3265a0f // @fc3fb3265a0f0061d07d0bf5fb4103e2144565b2 (master around v2.17.2).
 	k8s.io/api => k8s.io/api v0.0.0-20190620084959-7cf5895f2711
 	k8s.io/apiextensions-apiserver => k8s.io/apiextensions-apiserver v0.0.0-20190620085554-14e95df34f1f
 	k8s.io/apimachinery => k8s.io/apimachinery v0.0.0-20190612205821-1799e75a0719

go.sum

@@ -689,8 +689,8 @@ github.com/prometheus/procfs v0.0.6 h1:0qbH+Yqu/cj1ViVLvEWCP6qMQ4efWUj6bQqOEA0V0
 github.com/prometheus/procfs v0.0.6/go.mod h1:7Qr8sr6344vo1JqZ6HhLceV9o3AJ1Ff+GxbHq6oeK9A=
 github.com/prometheus/procfs v0.0.8 h1:+fpWZdT24pJBiqJdAwYBjPSk+5YmQzYNPYzQsdzLkt8=
 github.com/prometheus/procfs v0.0.8/go.mod h1:7Qr8sr6344vo1JqZ6HhLceV9o3AJ1Ff+GxbHq6oeK9A=
-github.com/prometheus/prometheus v1.8.2-0.20200407102557-cd73b3d33e06 h1:0e+fXKnc3vkMOrd1TGPk1/ifloLaGgql401Qi81jHS4=
-github.com/prometheus/prometheus v1.8.2-0.20200407102557-cd73b3d33e06/go.mod h1:nNlxoC0YYSxWNe7N6dNJ0ScHt+1ddHc/y9i/R4ay7Ko=
+github.com/prometheus/prometheus v1.8.2-0.20200420120812-fc3fb3265a0f h1:tSf4xNfwPOunSH9NIEWsujfNgbTmeMo3taK1Fk/6wr4=
+github.com/prometheus/prometheus v1.8.2-0.20200420120812-fc3fb3265a0f/go.mod h1:nNlxoC0YYSxWNe7N6dNJ0ScHt+1ddHc/y9i/R4ay7Ko=
 github.com/rafaeljusto/redigomock v0.0.0-20190202135759-257e089e14a1/go.mod h1:JaY6n2sDr+z2WTsXkOmNRUfDy6FN0L6Nk7x06ndm4tY=
 github.com/rcrowley/go-metrics v0.0.0-20181016184325-3113b8401b8a/go.mod h1:bCqnVzQkZxMG4s8nGwiZ5l3QUCyqpo9Y+/ZMZ9VjZe4=
 github.com/rogpeppe/fastuuid v0.0.0-20150106093220-6724a57986af/go.mod h1:XWv6SoW27p1b0cqNHllgS5HIMJraePCO15w5zCzIWYg=