chore: make use of multiple exporters

Signed-off-by: Bence Csati <bence.csati@axoflow.com>

Author: csatib02

.github/workflows/artifacts.yaml

@@ -68,6 +68,7 @@ jobs:
 
       - name: Set up Cosign
         uses: sigstore/cosign-installer@d7d6bc7722e3daa8354c50bcb52f4837da5e9b6a # v3.8.1
+        if: ${{ inputs.publish }}
 
       - name: Set image name
         id: image-name
@@ -91,24 +92,13 @@ jobs:
             org.opencontainers.image.authors=Kube logging authors
             org.opencontainers.image.documentation=https://todo.docs
 
-
-      # Multiple exporters are not supported yet
-      # See https://github.com/moby/buildkit/pull/2760
-      - name: Determine build output
-        uses: haya14busa/action-cond@94f77f7a80cd666cb3155084e428254fea4281fd # v1.2.1
-        id: build-output
-        with:
-          cond: ${{ inputs.publish }}
-          if_true: type=image,push=true
-          if_false: type=oci,dest=image.tar
-
       - name: Login to GitHub Container Registry
         uses: docker/login-action@9780b0c442fbb1117ed29e0efdff1e18412f7567 # v3.3.0
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
           password: ${{ github.token }}
-        if: inputs.publish
+        if: ${{ inputs.publish }}
 
       - name: Build and push image
         id: build
@@ -120,8 +110,9 @@ jobs:
           labels: ${{ steps.meta.outputs.labels }}
           cache-from: type=gha
           cache-to: type=gha,mode=max
-          outputs: ${{ steps.build-output.outputs.value }},name=target
-          # push: ${{ inputs.publish }}
+          outputs: |
+            type=image,push=${{ inputs.publish }},name=target,annotation-index.org.opencontainers.image.description=${{ fromJSON(steps.meta.outputs.json).labels['org.opencontainers.image.description'] }}
+            type=oci,dest=image.tar,name=target,annotation-index.org.opencontainers.image.description=${{ fromJSON(steps.meta.outputs.json).labels['org.opencontainers.image.description'] }}
 
       - name: Sign image with GitHub OIDC Token
         if: ${{ inputs.publish && github.repository_owner == 'kube-logging' }} # Check if the workflow is called by the same GitHub organization
@@ -153,10 +144,6 @@ jobs:
         id: image-ref
         run: echo "value=${{ steps.image-name.outputs.value }}@${{ steps.build.outputs.digest }}" >> "$GITHUB_OUTPUT"
 
-      - name: Fetch image
-        run: skopeo --insecure-policy copy docker://${{ steps.image-name.outputs.value }}:${{ steps.meta.outputs.version }} oci-archive:image.tar
-        if: inputs.publish
-
       - name: Extract OCI tarball
         run: |
           mkdir -p image