chore: use Kong forked repo gopher-json

This update required two changes to encode Lua userdata and JSON null
values and support the encoding of sparsed arrays.

go.mod

@@ -8,7 +8,7 @@ require (
 	github.com/santhosh-tekuri/jsonschema/v5 v5.0.0
 	github.com/stretchr/testify v1.7.0
 	github.com/yuin/gluare v0.0.0-20170607022532-d7c94f1a80ed
-	github.com/yuin/gopher-lua v0.0.0-20210529063254-f4c35e4016d9
+	github.com/yuin/gopher-lua v0.0.0-20221210110428-332342483e3f
 	gopkg.in/yaml.v1 v1.0.0-20140924161607-9f9df34309c0
 )
 
@@ -20,4 +20,4 @@ require (
 
 replace github.com/yuin/gopher-lua => github.com/kong/gopher-lua v0.0.0-20221216134051-5199433b6390
 
-replace github.com/layeh/gopher-json => github.com/hbagdi/gopher-json v0.0.0-20220325165250-3030ea88774d
+replace github.com/layeh/gopher-json => github.com/kong/gopher-json v0.0.0-20221216152158-64015758f4ba

go.sum

@@ -2,8 +2,8 @@ github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
 github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
-github.com/hbagdi/gopher-json v0.0.0-20220325165250-3030ea88774d h1:usQmJ+My7LkHpbJlTaZcdIZ6SjB14RL1K/yCTLQugwY=
-github.com/hbagdi/gopher-json v0.0.0-20220325165250-3030ea88774d/go.mod h1:UcFBID7OH3S2ZyMendQaeFLwqG9ViDd1n1ZkUSpHOfQ=
+github.com/kong/gopher-json v0.0.0-20221216152158-64015758f4ba h1:D6P7OP+2bKacD+nXMmCt6/6o1lyywE+wgp+7VT+XNO8=
+github.com/kong/gopher-json v0.0.0-20221216152158-64015758f4ba/go.mod h1:RwmiOAgP5hK+yOCQxFEq1c6GIUqD2kZa+E2mMuydp4Y=
 github.com/kong/gopher-lua v0.0.0-20221216134051-5199433b6390 h1:At74YBENxFcNXUACymVQ9nPP7hscC0/WtHGJIyqo4OI=
 github.com/kong/gopher-lua v0.0.0-20221216134051-5199433b6390/go.mod h1:GBR0iDaNXjAgGg9zfCvksxSRnQx76gclCIb7kdAd1Pw=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=