Bump thrift from 0.20.0 to 0.21.0 (#1197)

Bumps [thrift](https://github.com/apache/thrift) from 0.20.0 to 0.21.0.
- [Release notes](https://github.com/apache/thrift/releases)
- [Commits](apache/thrift@v0.20.0...v0.21.0)

---
updated-dependencies:
- dependency-name: thrift
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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