Log Message:
py-flask-cors: Update to 4.0.0.

## 4.0.0
* Remove support for Python versions older than 3.8 by @WAKayser in \ 
https://github.com/corydolphin/flask-cors/pull/330
* Add GHA tooling by @corydolphin in \ 
https://github.com/corydolphin/flask-cors/pull/331

## 3.1.01
* Include examples to specify that schema and port must be included in … by \ 
@YPCrumble in https://github.com/corydolphin/flask-cors/pull/294
* two small changes to the documentation, based on issue #290 by @bbbart in \ 
https://github.com/corydolphin/flask-cors/pull/291
* Fix typo by @sunarch in https://github.com/corydolphin/flask-cors/pull/304
* FIX: typo in CSRF by @sattamjh in \ 
https://github.com/corydolphin/flask-cors/pull/315
* Test against recent Python versions by @pylipp in \ 
https://github.com/corydolphin/flask-cors/pull/314
* Correct spelling mistakes by @EdwardBetts in \ 
https://github.com/corydolphin/flask-cors/pull/311
* 'Access-Control-Allow-Private-Network = true' header for http response by \ 
@chelo-kjml in https://github.com/corydolphin/flask-cors/pull/318
* docs: Fix a few typos by @timgates42 in \ 
https://github.com/corydolphin/flask-cors/pull/323
* [Docs] Fix typo in configuration documentation by @sachit-shroff in \ 
https://github.com/corydolphin/flask-cors/pull/316