ci: read matrix output

.github/workflows/auto-build.yml

@@ -42,8 +42,26 @@ jobs:
       runner: "${{ matrix.platforms.runner }}"
     secrets: inherit
 
+  ## Read matrix base-app outputs
+  read-matrix:
+    runs-on: ubuntu-latest
+    needs: [base-app]
+    steps:
+      - uses: cloudposse/github-action-matrix-outputs-read@v1
+        id: read
+        with:
+          matrix-step-name: base-app
+      - name: Convert slash-based keys to new outputs
+        id: convert
+        run: |
+          echo "results=$(echo '${{ steps.read.outputs.result }}' | jq -r '.image_tag.name[\"linux/amd64\"]')" >> $GITHUB_OUTPUT
+          echo "results_arm64=$(echo '${{ steps.read.outputs.result }}' | jq -r '.image_tag.name[\"linux/arm64\"]')" >> $GITHUB_OUTPUT
+    outputs:
+      base_app_image_amd64: ${{ steps.convert.outputs.results }}
+      base_app_image_arm64: ${{ steps.convert.outputs.results_arm64 }}
+
   apps-amd64:
-    needs: [base, base-app]
+    needs: [read-matrix]
     strategy:
       matrix:
         image:
@@ -62,11 +80,11 @@ jobs:
     with:
       image_name: "${{ matrix.image }}"
       base_image: "${{ needs.base.outputs.image_tag }}"
-      base_app_image: "${{ needs.base-app.outputs.image_tag }}"
+      base_app_image: "${{ needs['read-matrix'].outputs.base_app_image_amd64 }}"
     secrets: inherit
 
   apps-arm64:
-    needs: [base, base-app]
+    needs: [read-matrix]
     strategy:
       matrix:
         image:
@@ -76,7 +94,7 @@ jobs:
     with:
       image_name: "${{ matrix.image }}"
       base_image: "${{ needs.base.outputs.image_tag }}"
-      base_app_image: "${{ needs.base-app.outputs.image_tag }}"
+      base_app_image: "${{ needs['read-matrix'].outputs.base_app_image_arm64 }}"
       platforms: "linux/arm64"
       runner: "ARM64"
     secrets: inherit