Add Github action for Code-coverage

Author: SuhashiniNaik

.github/workflows/code-coverage.yml

@@ -36,10 +36,8 @@ jobs:
       run: sudo apt install lcov
 
     - name: Capture code coverage
-      run: |
-        echo "Capturing code coverage..."
-        lcov --capture --directory cmake-build-unit-tests \
-             --output-file cmake-build-unit-tests/coverage_unfiltered.info
+      run: lcov --capture --directory . \
+           --output-file cmake-build-unit-tests/coverage_unfiltered.info
 
     - name: Filter out 3rd party and mock files
       run: |