Remove workflow_run trigger and adjust job configuration in copilot-test-tools.yml

Author: austenstone

.github/workflows/copilot-test-tools.yml

@@ -1,13 +1,9 @@
 on:
   push:
-  workflow_run:
-    workflows: [CI] # add workflows here
-    types: [completed]
 
 jobs:
-  on-failure:
+  test-mcp-tools:
     runs-on: ubuntu-latest
-    if: ${{ github.event.workflow_run.conclusion == 'failure' }}
     concurrency:
       group: 'copilot-test-tools'
       cancel-in-progress: true