actually, let's try machete?

.github/workflows/test_rust.yml

@@ -150,9 +150,13 @@ jobs:
       - name: Install Rust toolchain
         uses: dtolnay/rust-toolchain@stable
 
-      - name: Check licensing and duplicates in used crates
+      - name: Check licenses, duplicates, and advisories
         uses: EmbarkStudios/cargo-deny-action@v1
 
+      - name: Check unused dependencies
+        uses: bnjbvr/cargo-machete@main
+
+
   check-required:
     needs: changes
     if: needs.changes.outputs.should_run == 'false'