Remove extra ';' in csv.hpp

[Grufoony]

Fix the warning raised by -Wpedantic

/home/grufoony/DynamicalSystemFramework/build/_deps/csv-parser-src/single_include/csv.hpp:6794:10: warning: extra ‘;’ [-Wpedantic]
 6794 |         };
      |          ^
      |          -

[vincentlaucsb]

Thanks for bringing this to my attention. I've added -Werror and -Wpedantic to the GitHub builds so this should be flagged automatically in the future.