build(deps): update chrono-tz requirement from 0.8.6 to 0.9.0

Updates the requirements on [chrono-tz](https://github.com/chronotope/chrono-tz) to permit the latest version.
- [Release notes](https://github.com/chronotope/chrono-tz/releases)
- [Changelog](https://github.com/chronotope/chrono-tz/blob/main/CHANGELOG.md)
- [Commits](chronotope/chrono-tz@v0.8.6...v0.9.0)

---
updated-dependencies:
- dependency-name: chrono-tz
  dependency-type: direct:production
...

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

crates/burrego/Cargo.toml

@@ -9,7 +9,7 @@ edition = "2021"
 [dependencies]
 base64 = "0.22.0"
 chrono = { version = "0.4.37", default-features = false, features = ["clock"] }
-chrono-tz = "0.8.6"
+chrono-tz = "0.9.0"
 gtmpl = "0.7.1"
 gtmpl_value = "0.5.1"
 itertools = "0.12.1"