chore(deps): bump quote from 1.0.20 to 1.0.21

Bumps [quote](https://github.com/dtolnay/quote) from 1.0.20 to 1.0.21.
- [Release notes](https://github.com/dtolnay/quote/releases)
- [Commits](dtolnay/quote@1.0.20...1.0.21)

---
updated-dependencies:
- dependency-name: quote
  dependency-type: indirect
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>