Bump image from 0.24.9 to 0.25.2

[musicinmybrain]

Breaking changes from 0.24 to 0.25 are described in https://github.com/image-rs/image/blob/main/CHANGES.md#version-0250.

This PR includes the following changes to adapt to image 0.25:

• Replace ImageOutputFormat, previously deprecated and removed in 0.25, with ImageFormat
• Require the color_quant crate feature (for impl ColorMap for NeoQuant)

[spenserblack]

Can we disable default features? This is bringing in a lot of new dependencies and I'm not sure if we need them all.

[musicinmybrain]

Can we disable default features? This is bringing in a lot of new dependencies and I'm not sure if we need them all.

Sure, that’s feasible.

As of 0.24.9, the default features were:

default = ["gif", "jpeg", "ico", "png", "pnm", "tga", "tiff", "webp", "bmp", "hdr", "dxt", "dds", "farbfeld", "jpeg_rayon", "openexr", "qoi"]

As of 0.25.2, they are

default = ["rayon", "default-formats"]
default-formats = ["avif", "bmp", "dds", "exr", "ff", "gif", "hdr", "ico", "jpeg", "png", "pnm", "qoi", "tga", "tiff", "webp"]
avif = ["dep:ravif", "dep:rgb"]

So what I notice, looking at the above and at the diff image-rs/image@v0.24.9...v0.25.2#diff-2e9d962a08321605940b5a657135052fbcef87b5e360662bb527c96d9a615542L63, I notice:

• avif was added to the default features, bringing in the ravif crate (which has some new dependencies like loop9, imgref, avif-serialize, rav1e)
• the jpeg_rayon feature is gone and jpeg now brings in zune-core and zune-jpeg – nothing to be done about this if you need JPEG support
• rayon was added to the default features, which enables multithreading

It seems like rayon is worthwile, because this is likely to speed up loading of images and therefore perceived responsiveness. The biggest way you could prune the dependency tree would be by omitting support for the AVIF format. I’ll add that to this PR. Let me know what you think.

[musicinmybrain]

Rebased on main with the image crate features reduced as suggested.