Correction: free-disk-space needs to be part of build job

.github/workflows/build.yml

@@ -10,16 +10,6 @@ on:
     types: [published]
 
 jobs:
-  free-disk-space:
-    runs-on: ubuntu-latest
-    steps:
-    - name: Free Disk Space (Ubuntu)
-      uses: jlumbroso/free-disk-space@main
-      with:
-        android: false
-        dotnet: false
-        haskell: false
-
   build:
     runs-on: ${{ matrix.os }}
     strategy:
@@ -34,6 +24,13 @@ jobs:
           - os: "ubuntu-latest"
             cibuild: "*musllinux*"
     steps:
+      - name: Free Disk Space (Ubuntu)
+        if: matrix.os == 'ubuntu-latest'
+        uses: jlumbroso/free-disk-space@main
+        with:
+          android: false
+          dotnet: false
+          haskell: false
       - uses: hmarr/debug-action@v2
       - name: Cancel Workflow Action
         uses: styfle/cancel-workflow-action@0.9.1