Update dirs requirement from 5.0 to 6.0

---
updated-dependencies:
- dependency-name: dirs
  dependency-version: 6.0.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

plotly_static/Cargo.toml

@@ -40,6 +40,6 @@ clap = { version = "4.0", features = ["derive"] }
 [build-dependencies]
 tokio = { version = "1", features = ["full"] }
 anyhow = "1.0"
-dirs = "5.0"
+dirs = "6.0"
 zip = "4.0"
 webdriver-downloader = "0.16"