Adding golden file test workflow

.github/workflows/golden.yml

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+name: golden
+on: [push, workflow_dispatch]
+jobs:
+  create-matrix:
+    runs-on: ubuntu-latest
+    outputs:
+      apps: ${{ steps.apps.outputs.matrix }}
+    steps:
+      - name: git clone
+        uses: actions/checkout@v4
+      - id: apps
+        run: |
+          export MATRIX=$(yq -o json '.' workflow-configuration.yml | jq -c '{"apps": .apps}')
+          echo "matrix=${MATRIX}" >> $GITHUB_OUTPUT
+          echo "This is the matrix" >> $GITHUB_STEP_SUMMARY
+          echo $MATRIX | jq . >> $GITHUB_STEP_SUMMARY
+        working-directory: .nextmv/golden
+
+  golden-file-test:
+    runs-on: ubuntu-latest
+    needs: create-matrix
+    strategy:
+      fail-fast: false
+      matrix: ${{ fromJson(needs.create-matrix.outputs.apps) }}
+    steps:
+      - name: git clone
+        uses: actions/checkout@v4
+
+      - uses: dorny/paths-filter@v3
+        id: changes
+        with:
+          filters: |
+            src:
+              - '.nextmv/golden/${{ matrix.apps.name }}/**'
+              - '${{ matrix.apps.name }}/**'
+
+      - name: Set up Python
+        if: ${{ matrix.apps.language == 'python' }} && steps.changes.outputs.src == 'true'
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+          cache: "pip"
+
+      - name: Install Python dependencies
+        if: ${{ matrix.apps.language == 'python' }} && steps.changes.outputs.src == 'true'
+        run: |
+          pip install -r ${{ matrix.apps.name }}/requirements.txt
+
+      - name: Set up Go
+        if: ${{ matrix.apps.language == 'go' }} && steps.changes.outputs.src == 'true'
+        uses: actions/setup-go@v5
+        with:
+          go-version: ${{ env.GO_VERSION }}
+
+      - name: Set up Java
+        if: ${{ matrix.apps.language == 'java' }} && steps.changes.outputs.src == 'true'
+        uses: actions/setup-java@v4
+        with:
+          java-version: ${{ matrix.apps.language-version }}
+          distribution: ${{ matrix.apps.distribution }}
+
+      - name: Run tests
+        if: steps.changes.outputs.src == 'true'
+        run: |
+          echo "Running tests for ${{ matrix.apps.name }}"
+          go test -v ./...
+        working-directory: .nextmv/golden/${{ matrix.apps.name }}

.nextmv/golden/workflow-configuration.yml

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+apps:
+  - name: cost-flow-ortools
+    language: python
+    language-version: 3.11
+  - name: knapsack-ampl
+    language: python
+    language-version: 3.11
+  - name: knapsack-gosdk
+    language: go
+    language-version: 1.22
+  - name: knapsack-gurobi
+    language: python
+    language-version: 3.11
+  - name: knapsack-java-ortools
+    language: java
+    language-version: 21
+    distribution: temurin
+  - name: knapsack-ortools
+    language: python
+    language-version: 3.11
+  - name: knapsack-pyomo
+    language: python
+    language-version: 3.11
+  - name: nextroute
+    language: go
+    language-version: 1.22
+  - name: order-fulfillment-gosdk
+    language: go
+    language-version: 1.22
+  - name: routing-ortools
+    language: python
+    language-version: 3.11
+  - name: shift-assignment-ortools
+    language: python
+    language-version: 3.11
+  - name: shift-assignment-pyomo
+    language: python
+    language-version: 3.11
+  - name: shift-planning-ortools
+    language: python
+    language-version: 3.11
+  - name: shift-planning-pyomo
+    language: python
+    language-version: 3.11
+  - name: shift-scheduling-gosdk
+    language: go
+    language-version: 1.22
+  - name: xpress
+    language: python
+    language-version: 3.11