Bump torch from 2.4.0 to 2.7.1

Bumps [torch](https://github.com/pytorch/pytorch) from 2.4.0 to 2.7.1.
- [Release notes](https://github.com/pytorch/pytorch/releases)
- [Changelog](https://github.com/pytorch/pytorch/blob/main/RELEASE.md)
- [Commits](pytorch/pytorch@v2.4.0...v2.7.1)

---
updated-dependencies:
- dependency-name: torch
  dependency-version: 2.7.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

pyproject.toml

@@ -36,15 +36,15 @@ dependencies = [
 [project.optional-dependencies]
 # Core ML functionality
 ml = [
-  "torch==2.4.0",
+  "torch==2.7.1",
   "torchvision==0.19.0",
   "torchaudio==2.4.0",
   "molfeat==0.11.0",
 ]
 
 # Advanced ML with GPU support
 ml-gpu = [
-  "torch==2.4.0",
+  "torch==2.7.1",
   "torchvision==0.19.0",
   "torchaudio==2.4.0",
   "molfeat==0.11.0",
@@ -62,7 +62,7 @@ protein = [
 
 # Optimal transport distances  
 otdd = [
-  "torch==2.4.0",
+  "torch==2.7.1",
   "torchvision==0.19.0",
   "torchaudio==2.4.0",
   "pot",
@@ -74,7 +74,7 @@ otdd = [
 
 # All features
 all = [
-  "torch==2.4.0",
+  "torch==2.7.1",
   "torchvision==0.19.0",
   "torchaudio==2.4.0",
   "molfeat==0.11.0",