native_python: Use a password hash instead of a clear text password

[fusion44]

Right now the api reads the clear text password from the environment. Change thid to use a precomputed hashed password instead.

blitz_api/app/system/impl/native_python.py

Line 67 in 11f8d57

matches = secrets.compare_digest(i.password, config("login_password", cast=str))

[thejamesgore]

Thought I would give this a crack as was implemented something similar using bcrypt in one of my projects