(ci) Fix Valgrind, Sanitizers, and CodeCov
(ci) Fix Valgrind, Sanitizers, and CodeCov

Enough fiddling with CI now, back to fixing bugs and adding features. But should probably revisit Valgrind and Sanitizer results.

acgetchell/CDT-plusplus,acgetchell/CDT-plusplus,acgetchell/CDT-plusplus