update(plugins/json): bump json plugin version to 0.2.2

Signed-off-by: Jason Dellaluce <jasondellaluce@gmail.com>
Co-authored-by: Leonardo Grasso <me@leonardograsso.com>
Co-authored-by: Federico Di Pierro <nierro92@gmail.com>

plugins/json/json.go

@@ -40,7 +40,7 @@ const (
 	PluginName               = "json"
 	PluginDescription        = "implements extracting arbitrary fields from inputs formatted as JSON"
 	PluginContact            = "github.com/falcosecurity/plugins/"
-	PluginVersion            = "0.2.1"
+	PluginVersion            = "0.2.2"
 )
 
 type MyPlugin struct {