version 1.4.0

What's Changed

• Prevent SciPy deprecation warning for estimate_gradients_2d_global by @basnijholt in #475
• Use uv as Nox backend and several related improvements by @basnijholt in #476
• Follow SPEC 0 and drop support for Python 3.9 and 3.10 by @basnijholt in #477
• Enable runtime type checking in tests with typeguard by @basnijholt in #478
• Bump mypy and ruff in pre-commit by @basnijholt in #479
• Update changelog to v1.4.0 by @basnijholt in #480

Full Changelog: v1.3.2...v1.4.0