MM-28103: prepackage incident-response (#15360)

Co-authored-by: Mattermod <mattermod@users.noreply.github.com>

model/config.go

@@ -2580,6 +2580,11 @@ func (s *PluginSettings) SetDefaults(ls LogSettings) {
 		s.PluginStates["com.mattermost.nps"] = &PluginState{Enable: ls.EnableDiagnostics == nil || *ls.EnableDiagnostics}
 	}
 
+	if s.PluginStates["com.mattermost.plugin-incident-response"] == nil {
+		// Enable the incident response plugin by default
+		s.PluginStates["com.mattermost.plugin-incident-response"] = &PluginState{Enable: true}
+	}
+
 	if s.EnableMarketplace == nil {
 		s.EnableMarketplace = NewBool(PLUGIN_SETTINGS_DEFAULT_ENABLE_MARKETPLACE)
 	}