Bump torch from 2.7.1 to 2.7.1+cpu

Bumps torch from 2.7.1 to 2.7.1+cpu.

---
updated-dependencies:
- dependency-name: torch
  dependency-version: 2.7.1+cpu
  dependency-type: direct:production
...

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

Author: dependabot[bot]

pyproject.toml

@@ -159,7 +159,7 @@ llslibdev = [
     # API tool_runtime: remote::model-context-protocol
     "mcp>=1.9.4",
     # API post_training: inline::huggingface
-    "torch==2.7.1",
+    "torch==2.7.1+cpu",
     "trl>=0.18.2",
     "peft>=0.15.2",
     # Other