fix orb and add test notifications for both cases

Author: Diego Ardila

.circleci/config.yml

@@ -1,6 +1,8 @@
 # CircleCI jobs are only enabled to on Pull Requests and commits to master branch.
 # "Only build pull requests" enabled in Project's Advanced Settings.
 version: 2.1
+orbs:
+  slack: circleci/slack@4.4.2
 
 jobs:
   build_test:
@@ -49,6 +51,11 @@ jobs:
           channel: nucleus-builders
           event: pass
           template: basic_fail_1
+      - slack/notify:
+          channel: nucleus-builders
+          event: fail
+          template: basic_fail_1
+      
       - slack/notify:
           channel: nucleus-builders
           branch_pattern: master