insarlab/PySolid: Version 0.3.1

Smaller environment/docker builds, leap second extension through mid 2024, and updated instructions for installing separate test/doc requirements. What's Changed build(deps): bump pypa/cibuildwheel from 2.12.1 to 2.12.3 by @dependabot in https://github.com/insarlab/PySolid/pull/57 circleci: use mambaforge by @yunjunz in https://github.com/insarlab/PySolid/pull/58 add docs/images/set*.png files by @yunjunz in https://github.com/insarlab/PySolid/pull/59 build(deps): bump pypa/cibuildwheel from 2.12.3 to 2.13.0 by @dependabot in https://github.com/insarlab/PySolid/pull/60 build(deps): bump pypa/cibuildwheel from 2.13.0 to 2.13.1 by @dependabot in https://github.com/insarlab/PySolid/pull/62 build(deps): bump pypa/cibuildwheel from 2.13.1 to 2.14.1 by @dependabot in https://github.com/insarlab/PySolid/pull/63 update leap sec to Jun 2024 by @yunjunz in https://github.com/insarlab/PySolid/pull/68 Cut scikit-image dependency by @scottstanie in https://github.com/insarlab/PySolid/pull/67 dep: drop matplotlib by @yunjunz in https://github.com/insarlab/PySolid/pull/69 pyproject.toml: add dynamic requirements from file by @scottstanie in https://github.com/insarlab/PySolid/pull/71 Full Changelog: https://github.com/insarlab/PySolid/compare/v0.3.0...v0.3.