Bump actions-rust-lang/setup-rust-toolchain from 1.14.0 to 1.15.0

Bumps [actions-rust-lang/setup-rust-toolchain](https://github.com/actions-rust-lang/setup-rust-toolchain) from 1.14.0 to 1.15.0.
- [Release notes](https://github.com/actions-rust-lang/setup-rust-toolchain/releases)
- [Changelog](https://github.com/actions-rust-lang/setup-rust-toolchain/blob/main/CHANGELOG.md)
- [Commits](actions-rust-lang/setup-rust-toolchain@ab68452...2fcdc49)

---
updated-dependencies:
- dependency-name: actions-rust-lang/setup-rust-toolchain
  dependency-version: 1.15.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/build-natives.yaml

@@ -157,7 +157,7 @@ jobs:
       - uses: Cysharp/Actions/.github/actions/setup-dotnet@main
         with:
           dotnet-version: 8.0.x
-      - uses: actions-rust-lang/setup-rust-toolchain@ab6845274e2ff01cd4462007e1a9d9df1ab49f42 # v1.14.0
+      - uses: actions-rust-lang/setup-rust-toolchain@2fcdc490d667999e01ddbbf0f2823181beef6b39 # v1.15.0
       - run: cargo build --target x86_64-unknown-linux-gnu --profile ${{ env._RUST_BUILD_CONFIG == 'debug' && 'dev' || env._RUST_BUILD_CONFIG }}
       - uses: Cysharp/Actions/.github/actions/upload-artifact@main
         with: