Bump poise_error from 1.4.0 to 1.6.0

Bumps [poise_error](https://github.com/valentinegb/poise-error) from 1.4.0 to 1.6.0.
- [Release notes](https://github.com/valentinegb/poise-error/releases)
- [Commits](valentinegb/poise-error@v1.4.0...v1.6.0)

---
updated-dependencies:
- dependency-name: poise_error
  dependency-version: 1.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Cargo.lock

@@ -60,7 +60,7 @@ git2 = "0.20.2"
 opendal = { version = "0.51.2", default-features = false }
 paste = "1.0.15"
 poise = { git = "https://github.com/serenity-rs/poise.git", rev = "80a3a9c3ca1629725f0fa4ec98372d39cf36f6b6" }
-poise_error = "1.4.0"
+poise_error = "1.6.0"
 rand = "0.9.2"
 serde = { version = "1.0.219", features = ["derive"] }
 serde_json = "1.0.142"