re-enable cargo machete

Signed-off-by: Jorge Prendes <[email protected]>

Author: jprendes

.github/workflows/ci.yml

@@ -41,9 +41,10 @@ jobs:
         env:
           RUSTDOCFLAGS: -Dwarnings
 
-      # See https://github.com/containerd/rust-extensions/issues/348
-      # - name: check unused dependencies
-      #   uses: bnjbvr/[email protected]
+      - name: check unused dependencies
+        uses: bnjbvr/[email protected]
+        env:
+          RUSTUP_TOOLCHAIN: "stable"
 
   # TODO: Merge this with the checks job above
   windows-checks:

crates/runc-shim/Cargo.toml

@@ -36,7 +36,6 @@ serde.workspace = true
 serde_json.workspace = true
 time.workspace = true
 uuid.workspace = true
-tempfile.workspace = true
 # Async dependencies
 async-trait.workspace = true
 tokio = { workspace = true, features = ["full"] }