contrib: prevent freetype from building for libjami-core

This dependency is only required by jami-plugins. Until the
jami-plugins repo migrates to using its own dependency tree and
pywinmake, we can ignore its specific dependencies here.

Gitlab: #1009
Change-Id: Ie845b24cac28fcd6c0f5cced06214be36bb5346a

extras/scripts/winmake.py

@@ -34,6 +34,7 @@ def build_contrib(args, paths):
         "onnx",
         "opencv",
         "opencv_contrib",
+        "freetype",
     ]
     versioner.extra_output_dirs = ["msvc"]