fixup the generated coverage file

Author: Totto16

.github/workflows/test.yml

@@ -39,7 +39,9 @@ jobs:
         run: meson compile -C build 
 
       - name: Coverage
-        run: ninja coverage-xml -C build
+        run: |
+          ninja coverage-xml -C build
+          sed -i "s/<source>\.\.<\\/source>/<source>\.<\\/source>/g" "./build/meson-logs/coverage.xml"
 
       - name: Create Coverage Report
         uses: insightsengineering/coverage-action@v2