enable cache

.github/workflows/build.yml

@@ -10,6 +10,8 @@ jobs:
   my-ostree-build:
     name: Build Custom Image
     runs-on: ubuntu-latest
+    env:
+      BB_BUILDKIT_CACHE_GHA: true
     permissions:
       contents: read
       packages: write
@@ -21,11 +23,17 @@ jobs:
           # !! Add your recipes here
           - fedora-kinoite-laptop.yml
     steps:
-       # the build is fully handled by the reusable github action
+      # This is required in order to take advantage of docker's cache integration with GitHub Actions.experimental
+      # https://github.com/moby/buildkit?tab=readme-ov-file#github-actions-cache-
+      - name: Expose GitHub Runtime
+        uses: crazy-max/ghaction-github-runtime@v3
+
+      # the build is fully handled by the reusable github action
       - name: Build Custom Image
-        uses: blue-build/github-action@v1.2
+        uses: blue-build/github-action@main
         with:
           recipe: ${{ matrix.recipe }}
           cosign_private_key: ${{ secrets.SIGNING_SECRET }}
           registry_token: ${{ github.token }}
           pr_event_number: ${{ github.event.number }}
+          use_unstable_cli: true