Bump github.com/spf13/afero from 1.3.5 to 1.4.0 in /exporters/metric/…

…cortex/utils (#348)

* Bump github.com/spf13/afero in /exporters/metric/cortex/utils

Bumps [github.com/spf13/afero](https://github.com/spf13/afero) from 1.3.5 to 1.4.0.
- [Release notes](https://github.com/spf13/afero/releases)
- [Commits](spf13/afero@v1.3.5...v1.4.0)

Signed-off-by: dependabot[bot] <support@github.com>

* Auto-fix go.sum changes in dependent modules

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: dependabot[bot] <dependabot[bot]@users.noreply.github.com>
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>

exporters/metric/cortex/utils/go.mod

@@ -5,7 +5,7 @@ go 1.14
 replace go.opentelemetry.io/contrib/exporters/metric/cortex => ../
 
 require (
-	github.com/spf13/afero v1.3.5
+	github.com/spf13/afero v1.4.0
 	github.com/spf13/viper v1.7.1
 	github.com/stretchr/testify v1.6.1
 	go.opentelemetry.io/contrib/exporters/metric/cortex v0.11.0

exporters/metric/cortex/utils/go.sum

@@ -187,8 +187,8 @@ github.com/smartystreets/goconvey v1.6.4/go.mod h1:syvi0/a8iFYH4r/RixwvyeAJjdLS9
 github.com/soheilhy/cmux v0.1.4/go.mod h1:IM3LyeVVIOuxMH7sFAkER9+bJ4dT7Ms6E4xg4kGIyLM=
 github.com/spaolacci/murmur3 v0.0.0-20180118202830-f09979ecbc72/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
 github.com/spf13/afero v1.1.2/go.mod h1:j4pytiNVoe2o6bmDsKpLACNPDBIoEAkihy7loJ1B0CQ=
-github.com/spf13/afero v1.3.5 h1:AWZ/w4lcfxuh52NVL78p9Eh8j6r1mCTEGSRFBJyIHAE=
-github.com/spf13/afero v1.3.5/go.mod h1:Ai8FlHk4v/PARR026UzYexafAt9roJ7LcLMAmO6Z93I=
+github.com/spf13/afero v1.4.0 h1:jsLTaI1zwYO3vjrzHalkVcIHXTNmdQFepW4OI8H3+x8=
+github.com/spf13/afero v1.4.0/go.mod h1:Ai8FlHk4v/PARR026UzYexafAt9roJ7LcLMAmO6Z93I=
 github.com/spf13/cast v1.3.0 h1:oget//CVOEoFewqQxwr0Ej5yjygnqGkvggSE/gB35Q8=
 github.com/spf13/cast v1.3.0/go.mod h1:Qx5cxh0v+4UWYiBimWS+eyWzqEqokIECu5etghLkUJE=
 github.com/spf13/jwalterweatherman v1.0.0 h1:XHEdyB+EcvlqZamSM4ZOMGlc93t6AcsBEu9Gc1vn7yk=