Temporarily break wasm feature of gix-diff to check CI

As noted in #2092, the `wasm` jobs on CI do not test `gix-diff`
directly. However, my prediction there that breakage would not be
detected on CI is likely mistaken, because those jobs do test the
`wasm` feature of `gix-pack`. The `gix-pack` crate depends on
`gix-diff`, and its `wasm` feature enable the `gix-diff` one.

This temporary change checks that CI does fail when the `wasm`
feature of `gix-diff` is broken in a simple way, even though it
does not currently run WASM tests of `gix-diff` directly.

This also temporarily makes the `wasm` matrix non-fail-fast, so
that more failures can be observed.

Author: EliahKagan

.github/workflows/ci.yml

@@ -401,6 +401,7 @@ jobs:
     strategy:
       matrix:
         target: [ wasm32-unknown-unknown, wasm32-wasip1 ]
+      fail-fast: false
 
     env:
       TARGET: ${{ matrix.target }}

gix-diff/Cargo.toml

@@ -44,7 +44,7 @@ gix-traverse = { version = "^0.47.0", path = "../gix-traverse", optional = true
 thiserror = "2.0.0"
 imara-diff = { version = "0.1.8", optional = true }
 serde = { version = "1.0.114", optional = true, default-features = false, features = ["derive"] }
-getrandom = { version = "0.2.8", optional = true, default-features = false, features = ["js"] }
+getrandom = { version = "0.2.8", optional = true, default-features = false }
 bstr = { version = "1.12.0", default-features = false }
 
 document-features = { version = "0.2.0", optional = true }