fix container matrix

Author: hellt

.github/workflows/container-build.yml

@@ -9,20 +9,22 @@ jobs:
   prepare-matrix:
     runs-on: ubuntu-22.04
     outputs:
-      matrix: ${{ steps.matrix.outputs.output }}
+      matrix: ${{ steps.set-matrix.outputs.matrix }}
     steps:
       - name: Dump GitHub context
         env:
           GITHUB_CONTEXT: ${{ toJson(github) }}
         run: |
           echo "$GITHUB_CONTEXT"
       - uses: actions/checkout@v4
-      - uses: fabasoad/data-format-converter-action@main
-        id: matrix
+      - uses: fabasoad/data-format-converter-action@v1
+        id: converter
         with:
-          input: ".github/container-matrix.yml"
+          source-pattern: ".github/container-matrix.yml"
           from: "yaml"
           to: "json"
+      - id: set-matrix
+        run: echo "matrix=$(jq -c . < ${{ steps.converter.outputs.result-path }}/container-matrix.json )" >> $GITHUB_OUTPUT
 
   build:
     name: Build container