fix(security): patch semantic-release-slack-bot vulnerabilities (#812)

Author: arnaudbesnier

package.json

@@ -65,7 +65,7 @@
     "pg": "8.4.2",
     "semantic-release": "17.4.7",
     "semantic-release-npm-deprecate-old-versions": "1.1.2",
-    "semantic-release-slack-bot": "1.6.2",
+    "semantic-release-slack-bot": "2.1.1",
     "sequelize": "5.21.3",
     "sequelize-fixtures": "1.1.1",
     "simple-git": "1.65.0",