Log Message:
graphics/ruby-mini-magick: update to 5.1.0

5.1.0 (2025-01-12)

* New cli_env configuration was added for setting extra environment
  variables for every CLI command:

    MiniMagick.configure do |config|
      config.cli_env = { "MAGICK_MEMORY_LIMIT" => "128MiB" }
    end

* New graphicsmagick configuration was added for telling MiniMagick to use
  GraphicsMagick instead of MiniMagick:

    MiniMagick.configure do |config|
      config.graphicsmagick = true # prepend all commands with "gm"
    end

  Previously, the recommended approach was setting MiniMagick.cli_prefix =
  "gm", but that doesn't work when ImageMagick 7 is installed, as in that
  case MiniMagick will try to prepend magick on top of gm.