Update safetensors-mojo to 0.8.0 for Mojo 1.1.0

[egor-fedorov]

Updates safetensors-mojo to 0.8.0 for Mojo 1.1.0. Pins mojo-compiler ==1.1.0 in build, host, and run requirements because the package distributes a compiler-version-specific .mojoc file. The public API is unchanged.

Validation: native linux-64 recipe build and installed-package smoke test passed with Mojo 1.1.0. Recipe rendering also passed for linux-aarch64 and osx-arm64.

The published 0.7.0 build-0 packages declare mojo-compiler >=1.0.0,<2.0a0, but their precompiled files require Mojo 1.0.0. Could the channel metadata for those variants on all three platforms be corrected to mojo-compiler ==1.0.0? This recipe update fixes new builds only; it does not correct the existing 0.7.0 records.

Checklist

• The recipe specifies the compatible Mojo compiler version; this package does not depend on MAX.
• The Apache-2.0 license file is packaged.
• The build number is 0 for the new package version.
• A build-number increment is not applicable because the package version changed.