👷 Use an old rust version to try and fix wasi-ld issues

This is based on the existance of rust-lang/rust#76679 and has no evidence that this will fix anything

Author: trickypr

.github/workflows/alpha.yml

@@ -60,6 +60,12 @@ jobs:
           wget https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-14/libclang_rt.builtins-wasm32-wasi-14.0.tar.gz
           sudo tar -xf libclang_rt.builtins-wasm32-wasi-14.0.tar.gz --strip-components=1 -C /usr/lib/llvm-10/lib/clang/10.0.0/lib/
 
+      - name: Use an old rust version as a workaround
+        run: |
+          rustup install 1.45.2
+          rustup default 1.45.2
+          rustup override set 1.45.2
+
       - name: Free up space
         run: |
           sudo rm -rf /usr/share/dotnet