chore: update Mooncake requirement from 0.4.138 to 0.4.138, 0.5 in /test

Updates the requirements on [Mooncake](https://github.com/chalk-lab/Mooncake.jl) to permit the latest version.
- [Release notes](https://github.com/chalk-lab/Mooncake.jl/releases)
- [Changelog](https://github.com/chalk-lab/Mooncake.jl/blob/main/HISTORY.md)
- [Commits](chalk-lab/Mooncake.jl@v0.4.138...v0.5.1)

---
updated-dependencies:
- dependency-name: Mooncake
  dependency-version: 0.5.1
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

test/Project.toml

@@ -70,7 +70,7 @@ LuxCore = "1.5"
 LuxLib = "1.15"
 LuxTestUtils = "2"
 MLDataDevices = "1.17"
-Mooncake = "0.4.138"
+Mooncake = "0.4.138, 0.5"
 NNlib = "0.9.27"
 Octavian = "0.3.28"
 OneHotArrays = "0.2.5"