devel/py-pynest2d: broken on ARM due to boost error

Mark as broken from a boost error.

/usr/local/include/boost/qvm/quat_traits.hpp:92:30: error: a template argument l
ist is expected after a name prefixed by the template keyword [-Wmissing-templat
e-arg-list-after-template-kw]
   92 |     quat_traits<Q>::template write_element_idx(i, q, s);
      |                              ^

devel/py-pynest2d/Makefile

@@ -11,6 +11,8 @@ WWW=		https://github.com/Ultimaker/libnest2d
 LICENSE=	LGPL3
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
+BROKEN_aarch64=	broken with trait error from boost
+
 BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}sip>=0:devel/py-sip@${PY_FLAVOR} \
 		${LOCALBASE}/include/libnest2d/libnest2d.hpp:devel/libnest2d-ultimaker
 LIB_DEPENDS=	libpolyclipping.so:graphics/polyclipping \