Fix CI config

Author: newpavlov

.github/workflows/tests.yml

@@ -78,8 +78,7 @@ jobs:
         with:
           targets: ${{ matrix.target }}
       - name: Install multilib
-        run: sudo apt-get update
-        run: sudo apt-get install gcc-multilib
+        run: sudo apt-get update && sudo apt-get install gcc-multilib
       - uses: Swatinem/rust-cache@v2
       - run: cargo test --target=${{ matrix.target }} --features=std