chore(release): release v7.21.0

[parabol-release-bot]

🤖 I have created a release beep boop

7.21.0 (2024-03-06)

Added

• make all templates free (#9503) (6762ebc)
• saml login no email, auth design fixups (#9507) (4ce391e)

Fixed

• upgrade graphql-jit from 0.7.4 to 0.8.4 (#9495) (fe1ad43)
• upgrade oy-vey from 0.11.2 to 0.12.1 (#9497) (1751731)
• upgrade sharp from 0.32.6 to 0.33.2 (#9493) (9fff933)

Changed

• bump ts node (#9498) (58c5817)
• put server assets on CDN (#9278) (06c1f7e)
• remove pg-typed part 1 (#9508) (5dfe26b)
• Update reviewers (#9504) (a95fb88)

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[parabol-release-bot]

🤖 Release is at https://github.com/ParabolInc/parabol/releases/tag/v7.21.0 🌻