Update meta.yaml for V5.1.0

Update meta.yaml for V5.1.0

Author: lzjpaul

tool/conda/singa/meta.yaml

@@ -20,7 +20,7 @@
 # https://docs.conda.io/projects/conda-build/en/latest/resources/define-metadata.html#templating-with-jinja
 # {% set data = load_setup_py_data(setup_file='../../../python/singa/setup.py', from_recipe_dir=True) %}
 
-{% set version = "5.0.0" %}
+{% set version = "5.1.0" %}
 
 package:
   name: singa