Replace goccy/go-json as it panics sometimes (closes #217)

go.mod

@@ -51,8 +51,8 @@ require (
 	github.com/davecgh/go-spew v1.1.1
 	github.com/dlclark/regexp2 v1.7.0
 	github.com/dop251/goja v0.0.0-20220722151623-4765a9872229
-	github.com/goccy/go-json v0.9.10
 	github.com/hashicorp/hcl/v2 v2.13.0
+	github.com/json-iterator/go v1.1.12
 	github.com/snowplow/snowplow-golang-tracker/v2 v2.4.1
 	github.com/yuin/gluamapper v0.0.0-20150323120927-d836955830e7
 	github.com/yuin/gopher-lua v0.0.0-20220504180219-658193537a64
@@ -91,7 +91,6 @@ require (
 	github.com/jcmturner/gokrb5/v8 v8.4.2 // indirect
 	github.com/jcmturner/rpc/v2 v2.0.3 // indirect
 	github.com/jmespath/go-jmespath v0.4.0 // indirect
-	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/mattn/go-sqlite3 v2.0.3+incompatible // indirect
 	github.com/mitchellh/go-wordwrap v1.0.1 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect

go.sum

@@ -260,8 +260,6 @@ github.com/go-test/deep v1.0.3/go.mod h1:wGDj63lr65AM2AQyKZd/NYHGb0R+1RLqB8NKt3a
 github.com/gobwas/httphead v0.0.0-20180130184737-2c6c146eadee/go.mod h1:L0fX3K22YWvt/FAX9NnzrNzcI4wNYi9Yku4O0LKYflo=
 github.com/gobwas/pool v0.2.0/go.mod h1:q8bcK0KcYlCgd9e7WYLm9LpyS+YeLd8JVDW6WezmKEw=
 github.com/gobwas/ws v1.0.2/go.mod h1:szmBTxLgaFppYjEmNtny/v3w89xOydFnnZMcgRRu/EM=
-github.com/goccy/go-json v0.9.10 h1:hCeNmprSNLB8B8vQKWl6DpuH0t60oEs+TAk9a7CScKc=
-github.com/goccy/go-json v0.9.10/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
 github.com/golang-jwt/jwt v3.2.2+incompatible h1:IfV12K8xAKAnZqdXVzCZ+TOjboZ2keLg81eXfW3O+oY=
 github.com/golang-jwt/jwt v3.2.2+incompatible/go.mod h1:8pz2t5EyA70fFQQSrl6XZXzqecmYZeUEB8OUGHkxJ+I=

pkg/transform/engine/engine.go

@@ -7,9 +7,13 @@
 package engine
 
 import (
+	jsoniter "github.com/json-iterator/go"
 	"github.com/snowplow-devops/stream-replicator/pkg/transform"
 )
 
+// make a jsoniter instance that won't escape html
+var json = jsoniter.Config{}.Froze()
+
 // functionMaker is the interface that wraps the MakeFunction method
 type functionMaker interface {
 	// MakeFunction returns a TransformationFunction that runs

pkg/transform/engine/engine_javascript.go

@@ -14,7 +14,6 @@ import (
 
 	goja "github.com/dop251/goja"
 	gojaparser "github.com/dop251/goja/parser"
-	gojson "github.com/goccy/go-json"
 	"github.com/mitchellh/mapstructure"
 
 	"github.com/snowplow-devops/stream-replicator/pkg/models"
@@ -153,7 +152,7 @@ func (e *JSEngine) MakeFunction(funcName string) transform.TransformationFunctio
 			message.Data = []byte(protoData)
 		case map[string]interface{}:
 			// encode
-			encoded, err := gojson.MarshalWithOption(protoData, gojson.DisableHTMLEscape())
+			encoded, err := json.Marshal(protoData)
 			if err != nil {
 				message.SetError(fmt.Errorf("error encoding message data"))
 				return nil, nil, message, nil