Fixing misspell errors (#8544)

app/command_loadtest.go

@@ -204,7 +204,7 @@ func (me *LoadTestProvider) SetupCommand(a *App, args *model.CommandArgs, messag
 			doFuzz)
 	}
 
-	return &model.CommandResponse{Text: "Created enviroment", ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL}
+	return &model.CommandResponse{Text: "Created environment", ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL}
 }
 
 func (me *LoadTestProvider) UsersCommand(a *App, args *model.CommandArgs, message string) *model.CommandResponse {