roman_datamodels 0.21.0

What's Changed

• RCAL-833 Recursively convert all meta attributes during model casting by @stscieisenhamer in #352
• fix linting issue with type comparison by @zacharyburnett in #356
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #354
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #357
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #359
• replace usages of copy_arrays with memmap by @zacharyburnett in #360
• remove unreachable code due to new asdf version requirement by @braingram in #365
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #363
• Enable "lazy_tree" for all Datamodels by @braingram in #358
• RCAL-878: TVAC Node Saving by @PaulHuwe in #369
• ignore addressed attrs deprecation warning in oldestdeps by @braingram in #371
• Update codeowners by @braingram in #375
• RCAL-884: Sky Background by @PaulHuwe in #370
• metadata for release 0.21.0 by @zacharyburnett in #374

Full Changelog: 0.20.0...0.21.0