Try to install libs as suggested in https://stackoverflow.com/a/16016792/7518605

Author: Mingun

.github/workflows/rust.yml

@@ -110,6 +110,9 @@ jobs:
     - uses: actions/checkout@v4
     - name: Install 32-bit target
       run: rustup target add i686-unknown-linux-gnu
+    - name: Install 32-bit libs
+      # https://stackoverflow.com/a/16016792/7518605
+      run: sudo apt install gcc-multilib
     - name: Run some tests on 32-bit target
       run: cargo test --target i686-unknown-linux-gnu --test issues
     - name: Run some tests on 32-bit target (async-tokio)