Use request.CTX instead of *request.Context (#24877)

* Use request.CTX instead of *request.Context

* Fix tests

server/channels/app/slashcommands/command_invite_people.go

@@ -42,7 +42,7 @@ func (*InvitePeopleProvider) GetCommand(a *app.App, T i18n.TranslateFunc) *model
 	}
 }
 
-func (*InvitePeopleProvider) DoCommand(a *app.App, c *request.Context, args *model.CommandArgs, message string) *model.CommandResponse {
+func (*InvitePeopleProvider) DoCommand(a *app.App, c request.CTX, args *model.CommandArgs, message string) *model.CommandResponse {
 	if !a.HasPermissionToTeam(c, args.UserId, args.TeamId, model.PermissionInviteUser) {
 		return &model.CommandResponse{Text: args.T("api.command_invite_people.permission.app_error"), ResponseType: model.CommandResponseTypeEphemeral}
 	}