Revert "Don't free up space for non-base builds"

This reverts commit 836eab6.

Builds were failing due to not enough space.

Author: strugee

.github/workflows/build.yml

@@ -60,5 +60,8 @@ jobs:
           cosign_private_key: ${{ secrets.SIGNING_SECRET }}
           registry_token: ${{ github.token }}
           pr_event_number: ${{ github.event.number }}
-          maximize_build_space: false
+
+          # enabled by default, disable if your image is small and you want faster builds
+          maximize_build_space: true
+
           skip_checkout: true