Bump gopkg.in/yaml.v2 from 2.2.7 to 2.2.8

go.mod

@@ -5,26 +5,17 @@ go 1.13
 require (
 	github.com/PagerDuty/go-pagerduty v0.0.0-20191110014646-e96b2a192c5d
 	github.com/dpb587/go-pairist v0.0.0-20191031224042-79df4efb281e
-	github.com/go-playground/universal-translator v0.17.0 // indirect
-	github.com/go-playground/validator v9.31.0+incompatible
+	github.com/golang/protobuf v1.3.2 // indirect
 	github.com/google/uuid v1.1.1
-	github.com/gorilla/sessions v1.2.0
 	github.com/gorilla/websocket v1.4.2 // indirect
 	github.com/jessevdk/go-flags v1.4.0
 	github.com/jinzhu/gorm v1.9.12
-	github.com/labstack/echo v3.3.10+incompatible
-	github.com/labstack/echo-contrib v0.9.0
 	github.com/labstack/echo/v4 v4.1.16
-	github.com/leodido/go-urn v1.2.0 // indirect
-	github.com/lusis/slack-test v0.0.0-20190426140909-c40012f20018 // indirect
-	github.com/nlopes/slack v0.5.0
 	github.com/onsi/ginkgo v1.10.2
 	github.com/onsi/gomega v1.7.0
 	github.com/pkg/errors v0.9.1
 	github.com/sirupsen/logrus v1.4.2
 	github.com/slack-go/slack v0.6.4
 	go.uber.org/zap v1.15.0
-	golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45
-	gopkg.in/go-playground/assert.v1 v1.2.1 // indirect
-	gopkg.in/yaml.v2 v2.2.7
+	gopkg.in/yaml.v2 v2.2.8
 )