Fix cargo machete (#5410)

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cargo machete depends on cargo-platform which seems to bumped it's msrv.
Installing via --locked should fix this for now. I think it's fine to do
this manually instead of using the cargo action since it's so simple and
the action we used basically did the same (without --locked)

.github/workflows/cargo_machete.yml

@@ -9,4 +9,4 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
       - name: Machete
-        uses: bnjbvr/cargo-machete@main
+        run: cargo install cargo-machete --locked && cargo machete