chore(deps): update safetensors requirement from 0.6 to 0.7

Updates the requirements on [safetensors](https://github.com/huggingface/safetensors) to permit the latest version.
- [Release notes](https://github.com/huggingface/safetensors/releases)
- [Changelog](https://github.com/huggingface/safetensors/blob/main/RELEASE.md)
- [Commits](huggingface/safetensors@v0.6.0...v0.7.0)

---
updated-dependencies:
- dependency-name: safetensors
  dependency-version: 0.7.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

Cargo.toml

@@ -63,6 +63,6 @@ proc-macro2 = "1"
 bindgen = "0.72"
 cmake = "0.1"
 cc = "1"
-safetensors = "0.6"
+safetensors = "0.7"
 bytemuck = "1"
 memmap2 = "0.9"