Remove unused tempfile dependency (#108)

## 🎟️ Tracking

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## 📔 Objective

This dependency seems unused, I noticed that while looking into this
renovate PR: #107

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crates/bw/Cargo.toml

@@ -26,8 +26,5 @@ inquire = "0.7.0"
 log = "0.4.20"
 tokio = { workspace = true, features = ["rt-multi-thread"] }
 
-[dev-dependencies]
-tempfile = "3.10.0"
-
 [lints]
 workspace = true