Build(deps): Bump sqlglot from 21.2.0 to 21.2.1

Bumps sqlglot from 21.2.0 to 21.2.1.

Changelog

Sourced from sqlglot's changelog.

[v21.2.1] - 2024-02-22

✨ New Features

• 2a88e40 - bigquery: support ELSE and ELSEIF procedural statements (PR #3011 by @​georgesittas)
  • ↘ addresses issue #3009 opened by @​razvan-am
• d2e15ed - improve transpilation of Doris' MONTHS_ADD (PR #3012 by @​georgesittas)

🐛 Bug Fixes

• c23ac05 - bigquery group by order by rewriting with indices (commit by @​tobymao)

Commits

• c23ac05 fix: bigquery group by order by rewriting with indices
• d2e15ed Feat: improve transpilation of Doris' MONTHS_ADD (#3012)
• 2a88e40 Feat(bigquery): support ELSE and ELSEIF procedural statements (#3011)
• 9079ead Convert SIGNUM function to SIGN (#3007)
• 9840496 docs: update API docs, CHANGELOG.md for v21.2.0 [skip ci]
• See full diff in compare view