meson: Fix local boost build

Currently compilation on the system without boost fails with a message:
"""
../subprojects/sdbusplus/include/sdbusplus/asio/connection.hpp:31:10:
fatal error: boost/callable_traits.hpp: No such file or directory
   31 | #include <boost/callable_traits.hpp>
"""
Add 'boost_callable_traits' to the dependencies to fix the issue.

Change-Id: I86259c0fece57c02cd28767626661e75abde93c2
Signed-off-by: Konstantin Aladyshev <aladyshev22@gmail.com>
1 file changed