build(deps): update duration-str requirement from 0.11 to 0.12

Updates the requirements on [duration-str](https://github.com/baoyachi/duration-str) to permit the latest version.
- [Release notes](https://github.com/baoyachi/duration-str/releases)
- [Commits](baoyachi/duration-str@v0.11.0...v0.12.0)

---
updated-dependencies:
- dependency-name: duration-str
  dependency-type: direct:production
...

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

Cargo.toml

@@ -58,7 +58,7 @@ chrono = { version = "0.4.31", optional = true, default-features = false, featur
 ] }
 chrono-tz = { version = ">=0.6, <0.11.0", optional = true }
 chronoutil = { version = "0.2", optional = true }
-duration-str = { version = "0.11", optional = true, default-features = false }
+duration-str = { version = "0.12", optional = true, default-features = false }
 
 [dev-dependencies.tokio]
 version = "1.5"