Add zstd dependency to go.mod

go.mod

@@ -20,6 +20,7 @@ require (
 	github.com/gorilla/mux v1.7.4
 	github.com/gorilla/securecookie v1.1.1 // indirect
 	github.com/jmespath/go-jmespath v0.3.0 // indirect
+	github.com/klauspost/compress v1.11.7
 	github.com/mattn/go-colorable v0.1.6 // indirect
 	github.com/microcosm-cc/bluemonday v1.0.2
 	github.com/nu7hatch/gouuid v0.0.0-20131221200532-179d4d0c4d8d // indirect