install alsa etc before building sdl

.github/workflows/build.yml

@@ -232,8 +232,12 @@ jobs:
           # The target architecture (x86, x64) of the Python interpreter.
           architecture: x64
 
-      - name: Build SDL
+      - name: install prereqs
         run: |
+          sudo apt update
+          sudo apt install libasound2-dev mesa-common-dev libx11-dev libxrandr-dev libxi-dev xorg-dev libgl1-mesa-dev libglu1-mesa-dev libwayland-dev libxkbcommon-dev
+      - name: Build SDL
+        run: |          
           wget https://github.com/libsdl-org/SDL/archive/refs/tags/release-2.30.7.tar.gz
           tar xvfz release-2.30.7.tar.gz
           mkdir build
@@ -245,8 +249,6 @@ jobs:
       # Runs a set of commands using the runners shell
       - name: Build raylib
         run: |
-          sudo apt update
-          sudo apt install libasound2-dev mesa-common-dev libx11-dev libxrandr-dev libxi-dev xorg-dev libgl1-mesa-dev libglu1-mesa-dev libwayland-dev libxkbcommon-dev
           cd raylib-c
           mkdir build
           cd build