Improve canary issue titles

Author: mydea

.github/CANARY_FAILURE_TEMPLATE.md

@@ -1,5 +1,5 @@
 ---
-title: Canary tests failed
+title: {{ env.TITLE }}
 labels: 'Status: Untriaged, Type: Tests'
 ---
 Canary tests failed: {{ env.RUN_LINK }}

.github/workflows/canary.yml

@@ -133,6 +133,7 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           RUN_LINK: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
+          TITLE: ${{ matrix.label }} Test Failed
         with:
           filename: .github/CANARY_FAILURE_TEMPLATE.md
           update_existing: true
@@ -173,6 +174,7 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           RUN_LINK: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
+          TITLE: Ember Canary ${{ matrix.scenario }} Test Failed
         with:
           filename: .github/CANARY_FAILURE_TEMPLATE.md
           update_existing: true