add EOF blank line to conda_build_config

Co-authored-by: Anton <[email protected]>

Author: ndgrigorian

conda-recipe/conda_build_config.yaml

@@ -15,4 +15,4 @@ c_stdlib:                     # [win]
 cxx_compiler:                 # [win]
     - vs2019                  # [win]
 c_compiler:                   # [win]
-    - vs2019                  # [win]
+    - vs2019                  # [win]