rapidcheck: Add `meta.pkgConfigModules` and test
The last update added pkg-config support.
Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
(cherry picked from commit a7447f9e338fbaa12aeda5849041a39e04dd4b11)
(cherry picked from commit 96d3c843d3f859b5d26f1102843ca2a4ef1aa4cf)
