Rewrite metadata to docker format (#43)

Co-authored-by: lumarel <lumarel@users.noreply.github.com>

.github/workflows/build-2nd-layer.yml

@@ -56,6 +56,7 @@ jobs:
           labels: |
             name=rockylinux
             version=${{ matrix.version.major }}-ubi-${{ matrix.type }}
+          oci: true
           tags: ${{ matrix.registry.domain }}/${{ matrix.registry.account }}/rockylinux:${{ matrix.version.major }}-ubi-${{ matrix.type }}
 
       - name: Push image
@@ -63,3 +64,5 @@ jobs:
         with:
           image: ${{ steps.build-image.outputs.image }}
           tags: ${{ steps.build-image.outputs.tags }}
+          extra-args: |
+            --format=v2s2

.github/workflows/ci.yml

@@ -44,4 +44,5 @@ jobs:
           labels: |
             name=rockylinux
             version=${{ matrix.version.major }}-ubi-${{ matrix.type }}
+          oci: true
           tags: ${{ env.IMAGE_REGISTRY }}/${{ env.IMAGE_ACCOUNT }}/rockylinux:${{ matrix.version.major }}-ubi-${{ matrix.type }}