Imgbot RGBA incompatibility with Tauri on Linux

[ChecksumDev]

Hey! I was using Imgbot to optimize our images for an application, and when your service optimized our images it made building on Linux fail, and we had to roll this change back later.

After looking in the configuration it appears there is no setting for preventing Imgbot to convert from RGBA.
beat-forge/clients#22 for more information, files and further actions logs.

  error: proc macro panicked
    --> apps/gui/src-tauri/src/main.rs:59:14
     |
  59 |         .run(tauri::generate_context!())
     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^
     |
     = help: message: icon /home/runner/work/clients/clients/apps/gui/src-tauri/assets/icons/32x32.png is not RGBA

It would be a great addition to configuration since the conversion from RGBA can break some applications.