Update testrail-api-tests to only notify on failure and update appearance (#237)

Author: Copilot

.github/workflows/testrail-api-tests.yml

@@ -47,19 +47,48 @@ jobs:
           webhook-type: incoming-webhook
           payload: |
             {
-              "type": "mrkdwn",
-              "text": "TestRail API tests failed! :tada:\n\n*Workflow:* ${{ github.workflow }}\n*Job:* ${{ github.job }}\n\n*Status:* ${{ job.status }}\n*Test results:* Failed\n\nLink to results: <${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}|View results>"
-            }
-
-      - name: Send Slack message on test success
-        if: ${{ success() }}
-        id: slack-success
-        uses: slackapi/slack-github-action@v2.1.1
-        with:
-          webhook: ${{ secrets.SLACK_WEBHOOK_URL }}
-          webhook-type: incoming-webhook
-          payload: |
-            {
-              "type": "mrkdwn",
-              "text": "TestRail API tests passed! :tada:\n\n*Workflow:* ${{ github.workflow }}\n*Branch:* ${{ github.ref_name }}\n*Job:* ${{ github.job }}\n\n*Status:* ${{ job.status }}\n*Test results:* Passed\n\nLink to results: <${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}|View results>"
+              "text": "TestRail API tests failed!",
+              "attachments": [
+                {
+                  "color": "danger",
+                  "blocks": [
+                    {
+                      "type": "header",
+                      "text": {
+                        "type": "plain_text",
+                        "text": "TestRail API Tests Failed",
+                        "emoji": true
+                      }
+                    },
+                    {
+                      "type": "section",
+                      "fields": [
+                        {
+                          "type": "mrkdwn",
+                          "text": "*Workflow:*\n${{ github.workflow }}"
+                        },
+                        {
+                          "type": "mrkdwn",
+                          "text": "*Job:*\n${{ github.job }}"
+                        },
+                        {
+                          "type": "mrkdwn",
+                          "text": "*Status:*\n${{ job.status }}"
+                        },
+                        {
+                          "type": "mrkdwn",
+                          "text": "*Test Results:*\nFailed"
+                        }
+                      ]
+                    },
+                    {
+                      "type": "section",
+                      "text": {
+                        "type": "mrkdwn",
+                        "text": "<${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}|View Results>"
+                      }
+                    }
+                  ]
+                }
+              ]
             }