Packs in template template parameter are not highlighted

[zyn0217]

Checklist

• [x] This problem exists even with the setting "C_Cpp.enhancedColorization": "Disabled"

The code with a problem is:

template <template <typename> typename U>
void foo();

template <template <typename...> typename U>
class Bar {};

It looks like:

With theme One Dark Pro Darker.

It should look like:

Same as that highlighted by GitHub.

Note that the builtin highlighting for c++, which is derived from this extension, seems to be influenced by this bug as well.