chore(deps): bump go/codec to 1.2.14 (#14664)

This PR fixes the issue reported here: ugorji/go#422.

KAG-7214

Author: Water-Melon

spec/fixtures/external_plugins/go/go.mod

@@ -2,4 +2,7 @@ module go-plugins
 
 go 1.13
 
-require github.com/Kong/go-pdk v0.7.1
+require (
+	github.com/Kong/go-pdk v0.7.1
+	github.com/ugorji/go/codec v1.2.14 // indirect
+)

spec/fixtures/external_plugins/go/go.sum

@@ -36,6 +36,8 @@ github.com/ugorji/go v1.2.1 h1:dz+JxTe7GZQdErTo7SREc1jQj/hFP1k7jyIAwODoW+k=
 github.com/ugorji/go v1.2.1/go.mod h1:cSVypSfTLm2o9fKxXvQgn3rMmkPXovcWor6Qn5tbFmI=
 github.com/ugorji/go/codec v1.2.1 h1:/TRfW3XKkvWvmAYyCUaQlhoCDGjcvNR8xVVA/l5p/jQ=
 github.com/ugorji/go/codec v1.2.1/go.mod h1:s/WxCRi46t8rA+fowL40EnmD7ec0XhR7ZypxeBNdzsM=
+github.com/ugorji/go/codec v1.2.14 h1:yOQvXCBc3Ij46LRkRoh4Yd5qK6LVOgi0bYOXfb7ifjw=
+github.com/ugorji/go/codec v1.2.14/go.mod h1:UNopzCgEMSXjBc6AOMqYvWC1ktqTAfzJZUZgYf6w6lg=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=