rad 0.19.0

What's Changed

• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #338
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #339
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #341
• RAD-140: Remove the unused variance schema by @WilliamJamieson in #344
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #345
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #348
• Add WCS to schemas by @nden in #351
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #358
• RAD-138: Level 3 Mosaic Update by @PaulHuwe in #334
• Update pyproject.toml by @PaulHuwe in #366
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #368
• Fix devdeps by @WilliamJamieson in #367
• update metadata for release 0.19.0 by @zacharyburnett in #372

Full Changelog: 0.18.0...0.19.0