YAML loader deprecates issue fix

Author: agupta49

f5_cccl/service/validation.py

@@ -37,7 +37,7 @@
 def read_yaml(target):
     """Open and read a yaml file."""
     with open(target, 'r') as yaml_file:
-        yaml_data = yaml.load(yaml_file)
+        yaml_data = yaml.load(yaml_file, Loader=yaml.FullLoader)
     return yaml_data