Download precompiled cargo deny

.github/workflows/main.yml

@@ -32,7 +32,11 @@ jobs:
       with:
         submodules: true
     - uses: ./.github/actions/install-rust
-    - run: cargo install cargo-deny
+    - run: |
+        set -e
+        curl -L https://github.com/EmbarkStudios/cargo-deny/releases/download/0.8.5/cargo-deny-0.8.5-x86_64-unknown-linux-musl.tar.gz | tar xzf -
+        mv cargo-deny-*-x86_64-unknown-linux-musl/cargo-deny cargo-deny
+        echo `pwd` >> $GITHUB_PATH
     - run: cargo deny check
 
   # Build `mdBook` documentation for `wasmtime`, and upload it as a temporary