small fixes

- bump `color_quant`: feature `alloc` renamed `num-traits` cf image-rs/color_quant#21
- `ImageDecoder`: remove `Reader` when no_std b/c cleaner

Author: n-prat

.github/workflows/rust.yml

@@ -2,6 +2,7 @@ name: Rust CI
 
 on:
   push:
+  # TODO(interstellar) revert
   #   branches: [ master, next ]
   # pull_request:
   #   branches: [ master, next ]

Cargo.toml

@@ -98,7 +98,7 @@ avif-decoder = ["mp4parse", "dcv-color-primitives", "dav1d"]
 # Requires rustc nightly for feature test.
 benchmarks = []
 
-alloc = ["num-traits/libm", "color_quant/alloc"]
+alloc = ["num-traits/libm", "color_quant/num-traits"]
 
 [[bench]]
 path = "benches/decode.rs"

src/image.rs

@@ -651,8 +651,6 @@ pub trait ImageDecoder<'a>: Sized {
     /// The type of reader produced by `into_reader`.
     #[cfg(feature = "std")]
     type Reader: std::io::Read + 'a;
-    #[cfg(not(feature = "std"))]
-    type Reader: 'a;
 
     /// Returns a tuple containing the width and height of the image
     fn dimensions(&self) -> (u32, u32);