Bump gopkg.in/yaml.v2 from 2.3.0 to 2.4.0 in /src/jetstream (#4817)

Bumps [gopkg.in/yaml.v2](https://github.com/go-yaml/yaml) from 2.3.0 to 2.4.0.
- [Release notes](https://github.com/go-yaml/yaml/releases)
- [Commits](go-yaml/yaml@v2.3.0...v2.4.0)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

src/jetstream/go.mod

@@ -80,7 +80,7 @@ require (
 	golang.org/x/crypto v0.0.0-20200820211705-5c72a883971a
 	gopkg.in/DATA-DOG/go-sqlmock.v1 v1.5.0
 	gopkg.in/cheggaaa/pb.v1 v1.0.27 // indirect
-	gopkg.in/yaml.v2 v2.3.0
+	gopkg.in/yaml.v2 v2.4.0
 	k8s.io/apiextensions-apiserver v0.0.0 // indirect
 	k8s.io/helm v2.16.10+incompatible // indirect
 	k8s.io/kubectl v0.0.0 // indirect

src/jetstream/go.sum

@@ -801,6 +801,7 @@ gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU=
 gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gotest.tools v2.2.0+incompatible/go.mod h1:DsYFclhRJ6vuDpmuTbkuFWG+y2sxOXAzmJt81HFBacw=
 helm.sh/helm/v3 v3.0.0 h1:or/9cs1GgfcTQeEnR2CVJNw893/rmqIG1KsNHmUiSFw=
 helm.sh/helm/v3 v3.0.0/go.mod h1:sI7B9yfvMgxtTPMWdk1jSKJ2aa59UyP9qhPydqW6mgo=