message: Replace `let` with `$(( ))`
diff: @@ -322,7 +322,7 @@ fuzz-tests:
  if grep "ink-fuzz-tests =" crates/${crate}/Cargo.toml;
  then
  cargo test --verbose --features ink-fuzz-tests --manifest-path crates/${crate}/Cargo.toml --no-fail-fast -- fuzz_;
  - let "all_tests_passed |= $?";
  + all_tests_passed=$(( all_tests_passed | $? ));
  fi
  done
  - if [ $all_tests_passed -eq 0 ]; then exit 0; fi
  