test: Enable buildx GHA cache

.forgejo/workflows/release-image.yml

@@ -54,7 +54,7 @@ jobs:
             }))
 
   build-image:
-    runs-on: dind
+    runs-on: not-nexy
     container: ghcr.io/catthehacker/ubuntu:act-latest
     needs: define-variables
     permissions:
@@ -133,8 +133,8 @@ jobs:
           platforms: ${{ matrix.platform }}
           labels: ${{ steps.meta.outputs.labels }}
           annotations: ${{ steps.meta.outputs.annotations }}
-          # cache-from: type=gha
+          cache-from: type=gha
-          # cache-to: type=gha,mode=max
+          cache-to: type=gha,mode=max
           sbom: true
           outputs: type=image,"name=${{ needs.define-variables.outputs.images_list }}",push-by-digest=true,name-canonical=true,push=true
         env: