Bump chrono from 0.4.19 to 0.4.20

Bumps [chrono](https://github.com/chronotope/chrono) from 0.4.19 to 0.4.20.
- [Release notes](https://github.com/chronotope/chrono/releases)
- [Changelog](https://github.com/chronotope/chrono/blob/main/CHANGELOG.md)
- [Commits](https://github.com/chronotope/chrono/compare/v0.4.19...v0.4.20)

---
updated-dependencies:
- dependency-name: chrono
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

crates/oauth2-types/Cargo.toml

@@ -14,7 +14,7 @@ url = { version = "2.2.2", features = ["serde"] }
 parse-display = "0.5.5"
 indoc = "1.0.7"
 serde_with = { version = "2.0.0", features = ["chrono"] }
-chrono = "0.4.19"
+chrono = "0.4.20"
 sha2 = "0.10.2"
 data-encoding = "2.3.2"
 thiserror = "1.0.32"