fix generating lcov.info

Author: AlaaElattar

melos.yaml

@@ -12,8 +12,8 @@ scripts:
   unit_test_and_coverage:
     description: Merge all packages coverage trace files ignoring data related to generated files.
     run: |
-      melos exec rm -rf coverage
       mkdir -p coverage # Ensure the coverage directory exists
-      melos run unit_test
+      melos exec --dir-exists="test" -- dart test --coverage=coverage --concurrency=1
+      dart pub global run coverage:format_coverage --lcov --in=coverage --out=coverage/lcov.info --report-on=lib
       melos exec -c 1 --file-exists=coverage/lcov.info -- coverde filter --input ./coverage/lcov.info --output MELOS_ROOT_PATH/coverage/filtered.lcov.info --filters \.g\.dart
       coverde value -i coverage/filtered.lcov.info > MELOS_ROOT_PATH/coverage/result.txt