Modify Unit Tests GitHub Actions workflow to get code coverage test reports

.github/workflows/unit-tests.yaml

@@ -8,12 +8,21 @@ on:
   pull_request:
 jobs:
   unit-test:
+    name: Run tests and collect coverage
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - name: Setup Go
-        uses: actions/setup-go@v4
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
         with:
           go-version-file: go.mod
+
       - name: Run Unit Tests
         run: make unit-test
+
+      - name: Upload results to Codecov
+        uses: codecov/codecov-action@v4
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}