v2.21.0

What's Changed

• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #837
• Visualize fit in Minuit.repr_html by @HDembinski in #838
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #841
• Support annotated model parameters by @HDembinski in #839
• Fix of matrix_format by @HDembinski in #843

Full Changelog: v2.20.0...v2.21.0