v7.0.0

What's Changed

• init 7.0.0.alpha by @hooopo in #13
• supports_index_sort_order? should return false by @yahonda in #17
• Move transaction_isolation_levels to database_statements.rb by @yahonda in #19
• Rails 7 requires Ruby 2.7 by @yahonda in #21
• add cte doc by @hooopo in #26
• check expression index support by @hooopo in #27
• Add x86_64-darwin-20 to allow macOS Big Sur by @yahonda in #28
• Explain why supports_bulk_alter? returns false by @yahonda in #29
• Add links to explain why these methods return false by @yahonda in #30
• CI against TiDB v5.3.0 by @yahonda in #32
• Support Rails 7.0.0 by @yahonda in #34
• Backport Initial step to support Rails 7.0.z to 7-0-stable by @yahonda in #41
• Merge pull request #42 from yahonda/run_ci_for_7-0-stable by @yahonda in #44
• Active Record 7.0.1 or higher is required by @yahonda in #45

Full Changelog: v6.1.2...v7.0.0