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]

rt/Cargo.toml

@@ -9,7 +9,7 @@ loader = { path = "../loader" }
 vm = { path = "../vm" }
 
 log = "0.4.17"
-dirs = "5.0"
+dirs = "6.0"
 
 [dev-dependencies]
 parser = { path = "../parser" }