package/python-flask-cors: security bump to version 3.0.9

Fixes the following security issue:

- CVE-2020-25032: An issue was discovered in Flask-CORS (aka CORS Middleware
  for Flask) before 3.0.9.  It allows ../ directory traversal to access
  private resources because resource matching does not ensure that pathnames
  are in a canonical format.

Also drop outdated md5 checksum and fix .hash indentation.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2 files changed