Bring back source constraints generation for PROD image build (#35004)

The PROD image uses source constraints to get built. The #34990
had moved the constraint generation to CI workflow which works
for main builds, but for regular PRs we also need to upload them
in the build-image workflow - otherwise PROD image build cannot
find them as artifacts.

This PR restores only source constraints upload as artifacts (this
is very fast)

.github/workflows/build-images.yml

@@ -233,6 +233,20 @@ jobs:
           PYTHON_VERSIONS: ${{needs.build-info.outputs.all-python-versions-list-as-string}}
           DEBUG_RESOURCES: ${{ needs.build-info.outputs.debug-resources }}
           BUILD_TIMEOUT_MINUTES: 70
+      - name: "Source constraints"
+        shell: bash
+        run: >
+          breeze release-management generate-constraints --run-in-parallel
+          --airflow-constraints-mode constraints-source-providers
+        env:
+          PYTHON_VERSIONS: ${{needs.build-info.outputs.all-python-versions-list-as-string}}
+          DEBUG_RESOURCES: ${{ needs.build-info.outputs.debug-resources }}
+      - name: "Upload constraint artifacts"
+        uses: actions/upload-artifact@v3
+        with:
+          name: constraints
+          path: ./files/constraints-*/constraints-*.txt
+          retention-days: 7
 
   build-prod-images:
     permissions: