Update MuJoCo version from 3.5.1 to 3.6.0 prior to next release.

The next release will include breaking changes, so this bumps the major
version to reflect that.

PiperOrigin-RevId: 881351265
Change-Id: I970c68a0211651c07fcb8109ebd0b138196cf50a

python/pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "mujoco"
-version = "3.5.1"
+version = "3.6.0"
 authors = [
     {name = "Google DeepMind", email = "mujoco@deepmind.com"},
 ]
@@ -34,9 +34,9 @@ dynamic = ["readme", "scripts"]
 
 [project.urls]
 Homepage = "https://github.com/google-deepmind/mujoco"
-Documentation = "https://mujoco.readthedocs.io/en/3.5.1"
+Documentation = "https://mujoco.readthedocs.io/en/3.6.0"
 Repository = "https://github.com/google-deepmind/mujoco"
-Changelog = "https://mujoco.readthedocs.io/en/3.5.1/changelog.html"
+Changelog = "https://mujoco.readthedocs.io/en/3.6.0/changelog.html"
 
 [tool.setuptools]
 include-package-data = false