Fix the type of payload

docs/references/deploy.yml.md

@@ -10,6 +10,7 @@ Field                    |Type                     |Required  |Description
 `description`            |*string*                 |`false`   |This field is the short description of the deployment. 
 `auto_merge`             |*boolean*                |`false`   |This field is used to ensure that the requested ref is not behind the repository's default branch. If you deploy with the commit or the tag you need to set `false`. For rollback, Gitploy set the field `false`.
 `required_contexts`      |*[]string*               |`false`   |This field allows you to specify a subset of contexts that must be success. 
+`payload`                |*object* or *string*     |`false`   |This field is JSON payload with extra information about the deployment. 
 `production_environment` |*boolean*                |`false`   |This field specifies whether this runtime environment is production or not.
 `approval`               |*[Approval](#approval)*  |`false`   |This field configures approval.
 

vo/config.go

@@ -18,12 +18,12 @@ type (
 		Name string `json:"name" yaml:"name"`
 
 		// Github parameters of deployment.
-		Task                  *string   `json:"task" yaml:"task"`
-		Description           *string   `json:"description" yaml:"description"`
-		AutoMerge             *bool     `json:"auto_merge" yaml:"auto_merge"`
-		RequiredContexts      *[]string `json:"required_contexts,omitempty" yaml:"required_contexts"`
-		Payload               *string   `json:"payload" yaml:"payload"`
-		ProductionEnvironment *bool     `json:"production_environment" yaml:"production_environment"`
+		Task                  *string     `json:"task" yaml:"task"`
+		Description           *string     `json:"description" yaml:"description"`
+		AutoMerge             *bool       `json:"auto_merge" yaml:"auto_merge"`
+		RequiredContexts      *[]string   `json:"required_contexts,omitempty" yaml:"required_contexts"`
+		Payload               interface{} `json:"payload" yaml:"payload"`
+		ProductionEnvironment *bool       `json:"production_environment" yaml:"production_environment"`
 
 		// Approval is the configuration of Approval,
 		// It is disabled when it is empty.