[cxx-interop] Disable a test for std::function on Debian 12

Debian 12 ships with a version of libstdc++ that declares a templated constructor of `std::function` with an rvalue-reference parameter. This is not yet supported by Swift.

rdar://125816354

Author: egorzhdan

test/Interop/Cxx/stdlib/use-std-function.swift

@@ -14,6 +14,7 @@
 // XFAIL: LinuxDistribution=rhel-9.3
 // XFAIL: LinuxDistribution=rhel-9.4
 // XFAIL: LinuxDistribution=fedora-39
+// XFAIL: LinuxDistribution=debian-12
 
 import StdlibUnittest
 import StdFunction