chore(deps-dev): Bump torchao from 0.11 to 0.15.0

Bumps [torchao](https://github.com/pytorch/ao) from 0.11 to 0.15.0.
- [Release notes](https://github.com/pytorch/ao/releases)
- [Commits](pytorch/ao@v0.11.0...v0.15.0)

---
updated-dependencies:
- dependency-name: torchao
  dependency-version: 0.15.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pyproject.toml

@@ -35,7 +35,7 @@ dependencies = [
 
 [project.optional-dependencies]
 examples = ["ninja>=1.11.1.1,<2.0", "evaluate", "huggingface_hub"]
-fp8 = ["llmcompressor", "torchao==0.11"]
+fp8 = ["llmcompressor", "torchao==0.15.0"]
 gptq = ["Cython", "gptqmodel>=1.7.3"]
 mx = ["microxcaling>=1.1"]
 opt = ["fms-model-optimizer[fp8, gptq, mx]"]