try to avoid running out of disk space during the builds

Author: rambo

.github/workflows/build.yml

@@ -8,6 +8,18 @@ jobs:
   bake:
     runs-on: ubuntu-latest
     steps:
+      - name: Free Disk Space (Ubuntu)
+        uses: jlumbroso/free-disk-space@main
+        with:
+          # this might remove tools that are actually needed,
+          # if set to "true" but frees about 6 GB
+          tool-cache: true
+          android: true
+          dotnet: true
+          haskell: true
+          large-packages: true
+          docker-images: true  # we want to re-download freshest layers anyway
+          swap-storage: true
       -
         name: Checkout
         uses: actions/checkout@v4