build(deps): Bump once_cell from 1.20.1 to 1.20.2

Bumps [once_cell](https://github.com/matklad/once_cell) from 1.20.1 to 1.20.2.
- [Changelog](https://github.com/matklad/once_cell/blob/master/CHANGELOG.md)
- [Commits](matklad/once_cell@v1.20.1...v1.20.2)

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

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

Cargo.toml

@@ -45,7 +45,7 @@ hyper = { version = "0.14.30", default-features = false }
 jsonwebtoken = { version = "9.3.0", default-features = false }
 mediatype = { version = "0.19.18", default-features = false }
 mime = { version = "0.3.17", default-features = false }
-once_cell = { version = "1.20.1", default-features = false }
+once_cell = { version = "1.20.2", default-features = false }
 openidconnect = { version = "3.5.0", default-features = false }
 rand = { version = "0.8.5", default-features = false }
 rsa = { version = "0.9.6", default-features = false }