build(deps): bump gopkg.in/DataDog/dd-trace-go.v1 from 1.22.0 to 1.23.1 (#3829)

Bumps [gopkg.in/DataDog/dd-trace-go.v1](https://github.com/DataDog/dd-trace-go) from 1.22.0 to 1.23.1.
- [Release notes](https://github.com/DataDog/dd-trace-go/releases)
- [Commits](https://github.com/DataDog/dd-trace-go/compare/v1.22.0...v1.23.1)

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

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

go.mod

@@ -42,7 +42,7 @@ require (
 	google.golang.org/api v0.20.0
 	google.golang.org/genproto v0.0.0-20200326112834-f447254575fd // indirect
 	google.golang.org/grpc v1.28.0
-	gopkg.in/DataDog/dd-trace-go.v1 v1.22.0
+	gopkg.in/DataDog/dd-trace-go.v1 v1.23.1
 	k8s.io/api v0.18.0
 	k8s.io/apimachinery v0.18.0
 	k8s.io/client-go v0.18.0

go.sum

@@ -722,6 +722,8 @@ google.golang.org/grpc v1.28.0 h1:bO/TA4OxCOummhSf10siHuG7vJOiwh7SpRpFZDkOgl4=
 google.golang.org/grpc v1.28.0/go.mod h1:rpkK4SK4GF4Ach/+MFLZUBavHOvF2JJB5uozKKal+60=
 gopkg.in/DataDog/dd-trace-go.v1 v1.22.0 h1:gpWsqqkwUldNZXGJqT69NU9MdEDhLboK1C4nMgR0MWw=
 gopkg.in/DataDog/dd-trace-go.v1 v1.22.0/go.mod h1:DVp8HmDh8PuTu2Z0fVVlBsyWaC++fzwVCaGWylTe3tg=
+gopkg.in/DataDog/dd-trace-go.v1 v1.23.1 h1:WwxQG9Sk+kcW/vepd1zFrRZUTzJHoYL/Cl0ArmMlVXo=
+gopkg.in/DataDog/dd-trace-go.v1 v1.23.1/go.mod h1:DVp8HmDh8PuTu2Z0fVVlBsyWaC++fzwVCaGWylTe3tg=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=