Stop sending notification on expected failure

The changes in 752729f1 in advertently resulted in notifications
being sent upon an expected failure. This commit corrects that by
looking at the build step's conclusion (where continue-on-error has
been taken into account) rather than build step's outcome (where
continue-on-error has not been considered).

.github/workflows/smoke-test.yml

@@ -68,13 +68,13 @@ jobs:
         continue-on-error: ${{ inputs.expected_to_fail }}
       - name: Check out send notification action
         uses: actions/checkout@v4
-        if: ${{ steps.build.outcome == 'failure' || (steps.build.outcome == 'success' && inputs.expected_to_fail)}}
+        if: ${{ steps.build.conclusion == 'failure' || (steps.build.outcome == 'success' && inputs.expected_to_fail)}}
         with:
           path: ci
           ref: ci
           sparse-checkout: .github/actions/send-notification
       - name: Determine owner ID secret names
-        if: ${{ steps.build.outcome == 'failure' || (steps.build.outcome == 'success' && inputs.expected_to_fail)}}
+        if: ${{ steps.build.conclusion == 'failure' || (steps.build.outcome == 'success' && inputs.expected_to_fail)}}
         run: |
           projectName=$(echo ${{ inputs.project }} | tr '[:lower:]:-' '[:upper:]__')
           groupName=$(echo $projectName | awk '{print substr($1, 0, index($1, "_") - 1)}')
@@ -88,7 +88,7 @@ jobs:
           path: '**/build/**/hs_err_pid*.log'
       - name: Send notification
         uses: ./ci/.github/actions/send-notification
-        if: ${{ steps.build.outcome == 'failure' || (steps.build.outcome == 'success' && inputs.expected_to_fail)}}
+        if: ${{ steps.build.conclusion == 'failure' || (steps.build.outcome == 'success' && inputs.expected_to_fail)}}
         with:
           webhook-url: ${{ secrets.GOOGLE_CHAT_WEBHOOK_URL }}
           task: ${{ inputs.project }}:${{ inputs.task }}