Tests in bevy_input_focus fail to ru with default feature flags

## Bevy version

https://github.com/bevyengine/bevy/commit/0a9740c18f9ae5338e29e4fbf49c55c34ffdf429

## What you did

Run a unit test in bevy_input_focus from within VSCode, which ran:

```
cargo test --package bevy_input_focus --lib --all-features -- directional_navigation::tests::looping_grid_edges --exact --show-output
```

## What went wrong

Compile failure, with:

```
Compiling glam v0.29.2
error[E0599]: no function or associated item named `abs` found for type `f32` in the current scope
--> /home/alice/.cargo/registry/src/index.crates.io-6f17d22bba15001f/glam-0.29.2/src/f32/math.rs:147:14
|
147 | f32::abs(f)
| ^^^ function or associated item not found in `f32`
```

And so on.

## Additional information

`cargo run -p ci` works, suggesting that this is a feature flag issue. Adding the `libm` flag to `bevy_math` as a dev-dependency fixes this crop of errors, but reveals more deeper down.