v0.4.0

What's Changed

• Bump actions/setup-python from 4 to 5 by @dependabot in #79
• Update pytest requirement from ==7.* to >=7,<9 by @dependabot in #80
• Bump peter-evans/dockerhub-description from 3 to 4 by @dependabot in #81
• Bump codecov/codecov-action from 3 to 4 by @dependabot in #82
• Add CITATION.cff by @gerlero in #83
• Update CI configuration by @gerlero in #84
• Format code with Black by @gerlero in #85
• Update Docker workflow by @gerlero in #86
• Update CI workflow by @gerlero in #87
• Update workflows by @gerlero in #88
• Drop support for Python < 3.9 by @gerlero in #89
• Fix publish workflow by @gerlero in #90

Full Changelog: v0.3.5...v0.4.0