25.6b1

What's Changed

• Use ruff instead of black, isort and flake8 by @josephine-wolf-oberholtzer in #504
• Implement Envelope.to_array() by @josephine-wolf-oberholtzer in #505
• Implement Envelope.plot() by @josephine-wolf-oberholtzer in #506

Full Changelog: v25.6b0...v25.6b1