v1.2.4

Summary:
Verifies that the land-sea mask objects are fetched from git-lfs when running CI and when building for pypi. First release after publishing on conda-forge 🎉

Itemized Changes:

• test: add check for reading land-sea masks (#157)
• ci: verify that git-lfs is used (#157)
• docs: add badge for conda-forge (#157)

Full Changelog: 1.2.3...1.2.4