fix(ci): Enable multiarch with qemu

Signed-off-by: RJ Trujillo <eyecantcu@pm.me>

.github/workflows/build-40.yaml

@@ -1,4 +1,4 @@
-name: ublue main 40
+name: ublue asahi 40
 on:
   pull_request:
   merge_group:

.github/workflows/reusable-build.yaml

@@ -140,6 +140,9 @@ jobs:
             io.artifacthub.package.readme-url=https://raw.githubusercontent.com/${{ github.repository }}/main/README.md
             io.artifacthub.package.logo-url=https://avatars.githubusercontent.com/u/120078124?s=200&v=4
 
+      - name: Set up qemu
+        uses: docker/setup-qemu-action@v2
+
       - name: Pull base image
         uses: Wandalen/wretry.action@v3.5.0
         with:
@@ -148,14 +151,14 @@ jobs:
           command: |
             # pull the base image used for FROM in containerfile so
             # we can retry on that unfortunately common failure case
-            podman pull quay.io/${{ env.SOURCE_ORG }}/${{ env.SOURCE_IMAGE }}:${{ matrix.fedora_version }}
+            podman pull --platform linux/aarch64 quay.io/${{ env.SOURCE_ORG }}/${{ env.SOURCE_IMAGE }}:${{ matrix.fedora_version }}
 
       # Build image using Buildah action
       - name: Build Image
         id: build_image
         uses: redhat-actions/buildah-build@v2
         with:
-          archs: "aarch64"
+          arch: "aarch64"
           containerfiles: |
             ./Containerfile
           image: ${{ env.IMAGE_NAME }}
@@ -167,6 +170,7 @@ jobs:
             SOURCE_IMAGE=${{ env.SOURCE_IMAGE }}
             FEDORA_MAJOR_VERSION=${{ matrix.fedora_version }}
           labels: ${{ steps.meta.outputs.labels }}
+          platforms: "linux/aarch64"
           oci: false
 
       # Workaround bug where capital letters in your GitHub username make it impossible to push to GHCR.