science/paraview: fix on 14-amd64

Clang 19 is needed, it fails with Clang 18.1.6:

ld: error: undefined symbol: vtktoken::Token::Token(std::1::basic_string<char, std::1::char_traits<char>, std::__1::allocator<char>> const&)

referenced by tokenize.cxx

CMakeFiles/tokenize.dir/tokenize.cxx.o:(main)

PR: 287346
Reported by: kevinz5000 (at) gmail.com