qt: Fix spelling error in WKSPublishJob

* src/qgpgmewkspublishjob.cpp,
src/qgpgmewkspublishjob.h,
src/wkspublishjob.h,
tests/t-wkspublish.cpp: Fix spelling of received.
* src/configure.ac (LIBQGPGME_LT_CURRENT): Bump
accordingly.

While this is an API break I've decided to fix this now
instead of deprecating / keeping it around forever in the API.

The only known users of QGpgME are KDE Applications and
there it is not yet used.