[Suggestion] Pin requirement versions (specifically python-box)

[cdgriffith]

Hello, I am the developer of python-box and see that it is a requirement in this repo and has not been version pinned.
I suggest that you pin it to the max known compatible version in your requirements.txt and/or setup.py file(s):

python-box[all]~=5.4  

Or without extra dependencies

python-box~=5.4

Using ~=5.0 (or any minor version) will lock it to the major version of 5 and minimum of minor version specified.
If you add a bugfix space for 5.4.0 it would lock it to the minor version 5.4.*.

The next major release of Box is right around the corner, and while it has many improvements,
I want to ensure you have a smooth transition by being able to test at your own leisure to ensure your standard user cases do not run into any issues. I am keeping track of major changes, so please check there as a quick overview of any differences.

To test new changes, try out the release candidate:

pip install python-box[all]~=6.0.0rc4

[elaboration]

I would love it if you would add versioning to all your requirements.txt files, please. Dependency compatibility quickly gets difficult as time moves on.