Updated to install gcc-multilib

.github/workflows/c-cpp.yml

@@ -13,10 +13,10 @@ jobs:
 
     steps:
     - uses: actions/checkout@v4
-    - name: Install NASM
+    - name: Install NASM & gcc-multilib
       run: |
         sudo apt-get update
-        sudo apt-get install -y nasm
+        sudo apt-get install -y nasm gcc-multilib
 
     - name: make
       run: make