feat(agent/ci): add coverage tracking step to agent ci workflow

.github/workflows/agent-ci.yaml

@@ -1,23 +1,26 @@
 name: Agent Unittest
-on:
-  pull_request: {}
-  push:
-    tags: [ "v/*" ]
+on: 
+  pull_request:
+    paths:
+      - agent/**
 jobs:
   test:
     name: Run tests & display coverage
     runs-on: ubuntu-latest
     permissions:
-      # Gives the action the necessary permissions for publishing new
-      # comments in pull requests.
+      contents: read
+      issues: read
+      checks: write
       pull-requests: write
-      # Gives the action the necessary permissions for pushing data to the
-      # python-coverage-comment-action branch, and for editing existing
-      # comments (to avoid publishing multiple comments in the same PR)
-      contents: write
     steps:
       - uses: actions/checkout@v4
       - name: Install everything, run the tests, produce the .coverage file and coverage.xml report
         run: |
           cd agent
-          make test
+          make test
+      - name: Publish Test Results
+        uses: EnricoMi/publish-unit-test-result-action@v2
+        if: always()
+        with:
+          files: |
+            agent/*coverage.xml