test(ci): Stick to cargo-machete v0.7.0 instead of main.

Author: Hywan

.github/workflows/detect-unused-dependencies.yml

@@ -9,4 +9,4 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
       - name: Machete
-        uses: bnjbvr/cargo-machete@main
+        uses: bnjbvr/cargo-machete@v0.7.0