meson: Update expat.wrap with latest version
It fixes missing exported symbols: https://github.com/mesonbuild/expat/commit/2602bd52eb7db804b5f0f988e293a1571b2b2709
Due to an influx of spam, we have had to impose restrictions on new accounts. Please see this wiki page for instructions on how to get full permissions. Sorry for the inconvenience.
It fixes missing exported symbols: https://github.com/mesonbuild/expat/commit/2602bd52eb7db804b5f0f988e293a1571b2b2709