message: Fix a deprecation message
  There's no Rgba::new method. Fixes
diff: @@ -265,7 +265,7 @@ pub trait Pixel: Copy + Clone {
  /// If the pixel does not contain 4 channels the extra are ignored.
  #[deprecated(
  since = "0.24.0",
  - note = "Use the constructor of the pixel, for example `Rgba::new(r,g,b,a)` or `Pixel::from_slice`"
  + note = "Use the constructor of the pixel, for example `Rgba([r,g,b,a])` or `Pixel::from_slice`"
  )]
  fn from_channels(
  a: Self::Subpixel,
  