Add a python label to the repository

Author: mcdonnnj

.github/labels.yml

@@ -50,6 +50,9 @@
 - color: "fcdb45"
   description: This pull request is awaiting an action or decision to move forward
   name: on hold
+- color: "3772a4"
+  description: Pull requests that update Python code
+  name: python
 - color: "ef476c"
   description: This issue is a request for information or needs discussion
   name: question