Upgrade to Go 1.19 (#2347)

api/go.mod

@@ -1,15 +1,15 @@
 module github.com/hashicorp/boundary/api
 
-go 1.18
+go 1.19
 
 require (
-	github.com/fatih/structs v1.1.0
 	github.com/hashicorp/go-cleanhttp v0.5.2
 	github.com/hashicorp/go-kms-wrapping/v2 v2.0.1
 	github.com/hashicorp/go-retryablehttp v0.6.8
 	github.com/hashicorp/go-rootcerts v1.0.2
 	github.com/hashicorp/go-secure-stdlib/parseutil v0.1.1
 	github.com/hashicorp/go-uuid v1.0.2
+	github.com/mitchellh/mapstructure v1.4.1
 	github.com/mr-tron/base58 v1.2.0
 	github.com/stretchr/testify v1.7.0
 	golang.org/x/time v0.0.0-20200630173020-3af7569d3a1e
@@ -27,7 +27,6 @@ require (
 	github.com/mattn/go-colorable v0.1.6 // indirect
 	github.com/mattn/go-isatty v0.0.12 // indirect
 	github.com/mitchellh/go-homedir v1.1.0 // indirect
-	github.com/mitchellh/mapstructure v1.4.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/rogpeppe/go-internal v1.6.1 // indirect
 	github.com/ryanuber/go-glob v1.0.0 // indirect

api/go.sum

@@ -15,8 +15,6 @@ github.com/envoyproxy/go-control-plane v0.9.9-0.20210217033140-668b12f5399d/go.m
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/fatih/color v1.7.0 h1:DkWD4oS2D8LGGgTQ6IvwJJXSL5Vp2ffcQg58nFV38Ys=
 github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
-github.com/fatih/structs v1.1.0 h1:Q7juDM0QtcnhCpeyLGQKyg4TOIghuNXrkL32pHAUMxo=
-github.com/fatih/structs v1.1.0/go.mod h1:9NiDSp5zOcgEDl+j00MP/WkGVPOlPRLejGD8Ga6PJ7M=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
 github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=