v3.0.0-alpha7

What's Changed

• Bump verison of autoapi used to build docs by @dstansby in #2177
• Bump the actions group across 1 directory with 2 updates by @dependabot in #2257
• chore: update pre-commit hooks by @pre-commit-ci in #2277
• [v3] fix: zarr v2 compatibility fixes for Dask by @jhamman in #2186
• Fix low contrast box titles by @dstansby in #2287
• Ignore extra keys in v2 metadata by @TomAugspurger in #2297
• Remove acknowledgements page from docs by @dstansby in #2293
• Add maximum character length for signatures in docs by @dstansby in #2299
• Change ArrayV3Metadata.data_type to DataType by @rabernat in #2278

Full Changelog: v3.0.0-alpha.6...v3.0.0-alpha7