Add BranchProtectionRuleEvent (#2102)

Fixes: #2098.

github/event.go

@@ -30,6 +30,8 @@ func (e Event) String() string {
 // a value of the corresponding struct type will be returned.
 func (e *Event) ParsePayload() (payload interface{}, err error) {
 	switch *e.Type {
+	case "BranchProtectionRuleEvent":
+		payload = &BranchProtectionRuleEvent{}
 	case "CheckRunEvent":
 		payload = &CheckRunEvent{}
 	case "CheckSuiteEvent":

github/event_types.go

@@ -15,6 +15,19 @@ type RequestedAction struct {
 	Identifier string `json:"identifier"` // The integrator reference of the action requested by the user.
 }
 
+// BranchProtectionRuleEvent triggered when a check suite is "created", "edited", or "deleted".
+// The Webhook event name is "branch_protection_rule".
+//
+// GitHub API docs: https://docs.github.com/en/developers/webhooks-and-events/webhooks/webhook-events-and-payloads#branch_protection_rule
+type BranchProtectionRuleEvent struct {
+	Action  *string               `json:"action,omitempty"`
+	Rule    *BranchProtectionRule `json:"rule,omitempty"`
+	Changes *ProtectionChanges    `json:"changes,omitempty"`
+	Repo    *Repository           `json:"repository,omitempty"`
+	Org     *Organization         `json:"organization,omitempty"`
+	Sender  *User                 `json:"sender,omitempty"`
+}
+
 // CheckRunEvent is triggered when a check run is "created", "completed", or "rerequested".
 // The Webhook event name is "check_run".
 //