fix: build_coverage scripts has errors

Part of #54

With moving of dependencies, some ignores of lcov are not matched and
considered as errors

Also choose to ignore version errors

tools/bin/build_coverage

@@ -2,12 +2,11 @@
 
 set -euo pipefail
 
-lcov --directory "$ROOT_DIR" --capture --output-file coverage.info
+lcov --ignore-errors version --directory "$ROOT_DIR" --capture --output-file coverage.info
 
 # Remove external files and dependencies
-lcov --remove coverage.info '/nix/store/*' --output-file coverage.info
-lcov --remove coverage.info '*/antlr4_runtime/*' '*/antlr4cpp_generated_src/*' --output-file coverage.info
-lcov --remove coverage.info '*/cxxopts.hpp' --output-file coverage.info
+lcov --ignore-errors unused --remove coverage.info '/nix/store/*' --output-file coverage.info
+lcov --ignore-errors unused --remove coverage.info "$ROOT_DIR/out/*/antlr4cpp_generated_src/*" --output-file coverage.info
 
 # Display result
 lcov --list coverage.info