Update holster, Golang to 1.22.

.github/Dockerfile

@@ -7,7 +7,7 @@
 # See https://github.com/mailgun/dockerworld/images for current pinned version
 
 # This creates an cached layer of our dependencies for subsequent builds to use
-FROM golang:1.18.3 AS deps
+FROM golang:1.22 AS deps
 WORKDIR /go/src
 RUN --mount=type=bind,target=/go/src,rw go mod download
 

go.mod

@@ -1,29 +1,59 @@
 module github.com/mailgun/kafka-pixy
 
-go 1.16
+go 1.22
+
+toolchain go1.22.2
 
 require (
 	github.com/Shopify/sarama v1.23.1
 	github.com/davecgh/go-spew v1.1.1
-	github.com/fatih/structs v1.1.0 // indirect
-	github.com/go-ini/ini v1.46.0 // indirect
 	github.com/gorilla/mux v1.8.0
-	github.com/mailgun/holster/v4 v4.0.0
+	github.com/mailgun/holster/v4 v4.18.1-0.20240422160847-5fbf4e2bb631
 	github.com/mailru/easyjson v0.0.0-20190626092158-b2ccc519800e
-	github.com/onsi/ginkgo v1.9.0 // indirect
-	github.com/onsi/gomega v1.6.0 // indirect
 	github.com/pkg/errors v0.9.1
 	github.com/samuel/go-zookeeper v0.0.0-20190810000440-0ceca61e4d75
-	github.com/sirupsen/logrus v1.8.1
+	github.com/sirupsen/logrus v1.9.2
+	github.com/stretchr/testify v1.8.4
+	github.com/thrawn01/args v0.3.0
+	golang.org/x/net v0.18.0
+	google.golang.org/grpc v1.59.0
+	google.golang.org/protobuf v1.31.0
+	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c
+	gopkg.in/yaml.v2 v2.4.0
+)
+
+require (
+	github.com/DataDog/zstd v1.3.6-0.20190409195224-796139022798 // indirect
+	github.com/eapache/go-resiliency v1.1.0 // indirect
+	github.com/eapache/go-xerial-snappy v0.0.0-20180814174437-776d5712da21 // indirect
+	github.com/eapache/queue v1.1.0 // indirect
+	github.com/fatih/structs v1.1.0 // indirect
+	github.com/fsnotify/fsnotify v1.4.7 // indirect
+	github.com/go-ini/ini v1.46.0 // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
+	github.com/golang/snappy v0.0.4 // indirect
+	github.com/google/go-cmp v0.6.0 // indirect
+	github.com/hashicorp/go-uuid v1.0.2 // indirect
+	github.com/jcmturner/gofork v0.0.0-20190328161633-dc7c13fece03 // indirect
+	github.com/kr/pretty v0.3.1 // indirect
+	github.com/kr/text v0.2.0 // indirect
+	github.com/onsi/ginkgo v1.9.0 // indirect
+	github.com/onsi/gomega v1.6.0 // indirect
+	github.com/pierrec/lz4 v0.0.0-20190327172049-315a67e90e41 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/rcrowley/go-metrics v0.0.0-20181016184325-3113b8401b8a // indirect
+	github.com/rogpeppe/go-internal v1.10.0 // indirect
 	github.com/smartystreets/goconvey v0.0.0-20190731233626-505e41936337 // indirect
 	github.com/spf13/cast v1.3.0 // indirect
-	github.com/stretchr/testify v1.7.0
-	github.com/thrawn01/args v0.3.0
-	golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4
-	google.golang.org/grpc v1.39.0
-	google.golang.org/protobuf v1.27.1
-	gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15
+	golang.org/x/crypto v0.15.0 // indirect
+	golang.org/x/sys v0.14.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20231016165738-49dd2c1f3d0b // indirect
 	gopkg.in/ini.v1 v1.46.0 // indirect
+	gopkg.in/jcmturner/aescts.v1 v1.0.1 // indirect
+	gopkg.in/jcmturner/dnsutils.v1 v1.0.1 // indirect
 	gopkg.in/jcmturner/goidentity.v3 v3.0.0 // indirect
-	gopkg.in/yaml.v2 v2.4.0
+	gopkg.in/jcmturner/gokrb5.v7 v7.2.3 // indirect
+	gopkg.in/jcmturner/rpc.v1 v1.1.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )