update melos file

Author: AlaaElattar

melos.yaml

@@ -12,8 +12,9 @@ scripts:
   unit_test_and_coverage:
     description: Merge all packages coverage trace files ignoring data related to generated files.
     run: |
-      mkdir -p coverage # Ensure the coverage directory exists
+      mkdir -p coverage
       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
+      dart pub global run coverde filter --input coverage/lcov.info --output coverage/filtered.lcov.info --filters .g.dart
+      dart pub global run coverde value -i coverage/filtered.lcov.info > coverage/result.txt
+