ci: Remove with-metadata flag from machete

> This may modify the Cargo.lock files in your projects.

Not what we want in ci builds
https://github.com/bnjbvr/cargo-machete

Author: timabell

.github/workflows/_ci.yml

@@ -31,7 +31,7 @@ jobs:
     - name: Install cargo-machete
       run: cargo install cargo-machete
     - name: Check for unused dependencies
-      run: cargo machete --with-metadata
+      run: cargo machete
 
   build:
     strategy: