Bump setuptools from 75.5.0 to 78.1.1 in /mjx

Bumps [setuptools](https://github.com/pypa/setuptools) from 75.5.0 to 78.1.1.
- [Release notes](https://github.com/pypa/setuptools/releases)
- [Changelog](https://github.com/pypa/setuptools/blob/main/NEWS.rst)
- [Commits](https://github.com/pypa/setuptools/compare/v75.5.0...v78.1.1)

---
updated-dependencies:
- dependency-name: setuptools
  dependency-version: 78.1.1
  dependency-type: direct:production
...

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

mjx/requirements.txt

@@ -76,8 +76,9 @@ scipy==1.13.1; python_version == '3.9' \
     --hash=sha256:d533654b7d221a6a97304ab63c41c96473ff04459e404b83275b60aa8f4b7004 \
     --hash=sha256:8335549ebbca860c52bf3d02f80784e91a004b71b059e3eea9678ba994796a24 \
     --hash=sha256:436bbb42a94a8aeef855d755ce5a465479c721e9d684de76bf61a62e7c2b81d5
-setuptools==75.5.0 \
-    --hash=sha256:87cb777c3b96d638ca02031192d40390e0ad97737e27b6b4fa831bea86f2f829
+setuptools==78.1.1 \
+    --hash=sha256:c3a9c4211ff4c309edb8b8c4f1cbfa7ae324c4ba9f91ff254e3d305b9fd54561 \
+    --hash=sha256:fcc17fd9cd898242f6b4adfaca46137a9edef687f43e6f78469692a5e70d851d
 trimesh==4.5.2 \
     --hash=sha256:2e50f3a7fd135c3045da887a1b9f91230528f3ce11d2ec1ba44750d82d6b4f73
 wheel==0.45.0 \