Add filedepot for pythonPackages

[PetecoKraus]

Description of changes

DEPOT is a framework for easily storing and serving files in web applications on Python3.2+.

DEPOT supports storing files in multiple backends, like:

• Local Disk
• In Memory (for tests)
• On Amazon S3 (or compatible services)
• On Google Cloud Storage and integrates with database by providing files attached to your SQLAlchemy or Ming/MongoDB models with respect to transactions behaviours (files are rolled back too).

Link to the Documentation https://depot.readthedocs.io/en/latest/

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandbox = true set in nix.conf? (See Nix manual)
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• 23.05 Release Notes (or backporting 22.11 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md.