v1.4.1

What's Changed

• Bump pre-commit/action from 3.0.0 to 3.0.1 by @dependabot in #17
• Bump codecov/codecov-action from 3.1.4 to 4.0.1 by @dependabot in #16
• Make dustmaps an optional dependency.

Full Changelog: v1.4...v1.4.1