v0.66.0

✨ Features

• Upgrade sqlglot and unquote mapping schema (#1929) @tobymao
• Update magics to match cli functionality (#1919) @eakmanrq
• Use max interval end of selected models when picking a default plan end (#1931) @izeigerman
• Add model caching for snapshots (#1930) @tobymao

🪲 Bug fixes

• Fix code highlighting in model kinds concepts docs (#1928) @treysp
• Default value for the max snapshot IDs per request used for Cloud Composer (#1932) @izeigerman
• Revert to the old plan end behavior (#1936) @izeigerman
• Improve interval cache further (#1934) @tobymao
• Prefer existing snapshots when mapping snapshot records during migration (#1940) @izeigerman

🧹 Chore

• Refactor Plan definition into immutable Plan and mutable PlanBuilder (#1925) @izeigerman
• Reorganize test marks (#1933) @eakmanrq
• Fix engine integration test (#1937) @eakmanrq
• Bump sqlglot to 20.8.0 (#1938) @crericha