python3Packages.ha-ffmpeg: does not depend on ffmpeg_3

[dotlambda]

The path to the binary is specified in the configuration:
https://www.home-assistant.io/integrations/ffmpeg#ffmpeg_bin

Motivation for this change

#120705

Things done

• Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS linux)
• Built on platform(s)
  • NixOS
  • macOS
  • other Linux distributions
• Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
• Tested compilation of all pkgs that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• Determined the impact on package closure size (by running nix path-info -S before and after)
• Ensured that relevant documentation is up to date
• Fits CONTRIBUTING.md.

[r-rmcgibbo]

Result of nixpkgs-review pr 121187 at 0897eb3 run on aarch64-linux 1

3 packages built successfully:

• home-assistant
• python38Packages.ha-ffmpeg
• python39Packages.ha-ffmpeg

1 suggestion:

• warning: python-include-tests

  Consider adding a checkPhase for tests, or if not feasible, pythonImportsCheck.

  Near pkgs/development/python-modules/ha-ffmpeg/default.nix:22:0:

     |
  22 |     description = "Library for home-assistant to handle ffmpeg";
     | ^
  

---

Result of nixpkgs-review pr 121187 at 0897eb3 run on x86_64-linux 1

3 packages built successfully:

• home-assistant
• python38Packages.ha-ffmpeg
• python39Packages.ha-ffmpeg

1 suggestion:

• warning: python-include-tests

  Consider adding a checkPhase for tests, or if not feasible, pythonImportsCheck.

  Near pkgs/development/python-modules/ha-ffmpeg/default.nix:22:0:

     |
  22 |     description = "Library for home-assistant to handle ffmpeg";
     | ^