Notify failures on error

ci/pipeline.yml

@@ -50,6 +50,8 @@ jobs:
           disable_checksum_uploads: true
     on_failure:
       *slack-failure-notification
+    on_error:
+      *slack-failure-notification
 
   - name: run-acceptance-tests
     serial: true
@@ -79,6 +81,8 @@ jobs:
           inputs: [toolsmith-env]
     on_failure:
       *slack-failure-notification
+    on_error:
+      *slack-failure-notification
 
   - name: stage-milestone
     serial: true

ci/pr-pipeline.yml

@@ -54,7 +54,9 @@ jobs:
           env_file: toolsmith-env/metadata
         inputs: [ toolsmith-env ]
     on_failure:
-      *slack-failure-notification        
+      *slack-failure-notification
+    on_error:
+      *slack-failure-notification
 
 resource_types:
   - name: pull-request