Bump github.com/honeycombio/libhoney-go from 1.10.0 to 1.15.3

Bumps [github.com/honeycombio/libhoney-go](https://github.com/honeycombio/libhoney-go) from 1.10.0 to 1.15.3.
- [Release notes](https://github.com/honeycombio/libhoney-go/releases)
- [Changelog](https://github.com/honeycombio/libhoney-go/blob/main/CHANGELOG.md)
- [Commits](honeycombio/libhoney-go@v1.10.0...v1.15.3)

---
updated-dependencies:
- dependency-name: github.com/honeycombio/libhoney-go
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

go.mod

@@ -3,18 +3,11 @@ module github.com/honeycombio/buildevents
 go 1.15
 
 require (
-	github.com/facebookgo/clock v0.0.0-20150410010913-600d898af40a // indirect
-	github.com/facebookgo/ensure v0.0.0-20160127193407-b4ab57deab51 // indirect
-	github.com/facebookgo/limitgroup v0.0.0-20150612190941-6abd8d71ec01 // indirect
-	github.com/facebookgo/muster v0.0.0-20150708232844-fd3d7953fd52 // indirect
-	github.com/facebookgo/stack v0.0.0-20160209184415-751773369052 // indirect
-	github.com/facebookgo/subset v0.0.0-20150612182917-8dac2c3c4870 // indirect
-	github.com/honeycombio/libhoney-go v1.10.0
+	github.com/honeycombio/beeline-go v1.1.2
+	github.com/honeycombio/libhoney-go v1.15.3
 	github.com/jszwedko/go-circleci v0.2.0
 	github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515
-	github.com/spf13/cobra v0.0.5
-	github.com/stretchr/testify v1.3.0 // indirect
-	gopkg.in/alexcesaro/statsd.v2 v2.0.0 // indirect
+	github.com/spf13/cobra v0.0.6
 )
 
 replace github.com/jszwedko/go-circleci => github.com/maplebed/go-circleci v0.0.0-20191121000249-089ef54587e5