Update build-kernel-a14-5.15.yml

.github/workflows/build-kernel-a14-5.15.yml

@@ -59,7 +59,7 @@ jobs:
         with:
           root-reserve-mb: 8192
           temp-reserve-mb: 2048
-          swap-size-mb: 32000
+          swap-size-mb: 8192
           remove-dotnet: 'true'
           remove-android: 'true'
           remove-haskell: 'true'