fix all vulnerabilities in the production code (#817)

Signed-off-by: Denis barbaron <denis.barbaron@orange.com>

lib/units/notify/slack.js

@@ -1,6 +1,10 @@
+/**
+* Copyright © 2024 contains code contributed by Orange SA, authors: Denis Barbaron - Licensed under the Apache license 2.0
+**/
+
 var util = require('util')
 
-var WebClient = require('@slack/client').WebClient
+var WebClient = require('@slack/web-api')
 var Promise = require('bluebird')
 
 var logger = require('../../util/logger')
@@ -41,7 +45,9 @@ module.exports = function(options) {
       var format = entry.message.indexOf('\n') === -1 ? '`%s`' : '```%s```'
       var message = util.format(format, entry.message)
 
-      client.chat.postMessage(options.channel, util.format(
+      client.chat.postMessage({
+        channel: options.channel
+      , text: util.format(
         '>>> *%s/%s* %d [*%s*] %s'
         , logger.LevelLabel[entry.priority]
         , entry.tag
@@ -49,11 +55,9 @@ module.exports = function(options) {
         , entry.identifier
         , message
         )
-        , {
-          username: 'STF'
-          , icon_url: 'https://openstf.io/favicon.png'
-        }
-      )
+      , username: 'STF'
+      , icon_url: 'https://openstf.io/favicon.png'
+      })
     })
   }