Add artifact downsload to shared build

Add support to download built artifacts to
shared-build-and-publish-docker-image.yml
This is used with two paramers:
 - artifact-id - the id of the artifact
 - artifact-path - the location where to download the artifact

Author: culka

.github/workflows/shared-build-and-publish-docker-image.yml

@@ -35,6 +35,16 @@ on:
         type: string
         required: false
         default: null
+      artifact-id:
+        description: Artifact ID needed to download for the build.
+        type: string
+        required: false
+        default: null
+      artifact-path:
+        description: Target where to download the artifact.
+        type: string
+        required: false
+        default: .
     secrets:
       azure_tenant_id:
         required: true
@@ -96,6 +106,13 @@ jobs:
       - name: Login to ACR via OIDC
         run: az acr login --name ${{ inputs.acr_name }}
 
+      - name: Download artifacts
+        if: ${{ inputs.artifact_id }}
+        uses: actions/download-artifact@v5
+        with:
+          artifact-ids: ${{ inputs.artifact_id }}
+          path: ${{ inputs.artifact-path }}
+
       - name: Build and push
         uses: docker/build-push-action@v6
         with: