python-cryptography: link against the limited Python API

now that it's available

python-cryptography/PKGBUILD

@@ -3,7 +3,7 @@
 _realname=cryptography
 pkgname=python-cryptography
 pkgver=46.0.3
-pkgrel=2
+pkgrel=3
 pkgdesc="A package designed to expose cryptographic recipes and primitives to Python developers"
 arch=('i686' 'x86_64')
 license=('spdx:Apache-2.0 OR BSD-3-Clause')
@@ -32,8 +32,7 @@ build() {
   export MSYSTEM=CYGWIN
 
   # XXX: this should be handled by maturin/pyo3 somehow
-  local link_arg=$(python -c "import sysconfig; print(sysconfig.get_config_var('LIBPYTHON'))")
-  export RUSTFLAGS="-C link-arg=$link_arg"
+  export RUSTFLAGS="-C link-arg=-lpython3"
 
   python -m build --wheel --no-isolation
 }