Test environment requires compilers

test_sycl_queue.py::test_cython_api requires a compiler to build
a native extension.

Author: oleksandr-pavlyk

conda-recipe/meta.yaml

@@ -33,6 +33,8 @@ requirements:
 
 test:
     requires:
+        - {{ compiler('c') }}
+        - {{ compiler('cxx') }}
         - cython
         - setuptools
         - pytest