chore: Prune external coverage

.github/workflows/cmake.yml

@@ -32,9 +32,6 @@ jobs:
         echo "$LCOV_ROOT/bin" >> $GITHUB_PATH
       shell: bash
 
-    - name: LCOV version
-      run: lcov --version
-
     - name: Configure CMake
       # Configure CMake in a 'build' subdirectory. `CMAKE_BUILD_TYPE` is only required if you are using a single-configuration generator such as make.
       # See https://cmake.org/cmake/help/latest/variable/CMAKE_BUILD_TYPE.html?highlight=cmake_build_type
@@ -49,11 +46,12 @@ jobs:
       run: ctest --verbose
 
     - name: Prune external code coverage
+      working-directory: ${{github.workspace}}/build
       run: rm -rf ./external/google-test/googletest/CMakeFiles/gtest.dir/src/gtest-all.cc.gcda
 
     - name: Generate code coverage report
       working-directory: ${{github.workspace}}/build
       run: |
         lcov --directory . --capture --output-file coverage.info
-        lcov --remove coverage.info 'test/*' '/usr/*' 'external/*' --output-file coverage.info
+        lcov --remove coverage.info '/usr/*' './test/*' './external/*' --output-file coverage.info
         lcov --list coverage.info