fix(build): symbol not found on macos

An attempt to start picodata on macos returns an error:
symbol not found in flat namespace '_res_9_getservers'

The reason is that macos executables require libresolv.dylib to
use resolv.h.

build.rs

@@ -227,6 +227,9 @@ fn build_tarantool(build_root: &Path) {
     if cfg!(target_os = "macos") {
         // -lc++ instead of -lstdc++ on macos
         rustc::link_lib_dynamic("c++");
+
+        // -lresolv on macos
+        rustc::link_lib_dynamic("resolv");
     } else {
         // not supported on macos
         rustc::link_arg("-export-dynamic");