Fix CI: Use `--detach` to start dataflow in background

.github/workflows/ci.yml

@@ -286,12 +286,12 @@ jobs:
           cargo build --all
           dora up
           dora list
-          dora start dataflow.yml --name ci-rust-test
+          dora start dataflow.yml --name ci-rust-test --detach
           sleep 10
           dora stop --name ci-rust-test  --grace-duration 5s
           cd ..
           dora build examples/rust-dataflow/dataflow_dynamic.yml
-          dora start examples/rust-dataflow/dataflow_dynamic.yml --name ci-rust-dynamic
+          dora start examples/rust-dataflow/dataflow_dynamic.yml --name ci-rust-dynamic --detach
           cargo run -p rust-dataflow-example-sink-dynamic
           sleep 5
           dora stop --name ci-rust-dynamic  --grace-duration 5s
@@ -315,11 +315,11 @@ jobs:
           cd test_python_project
           dora up
           dora list
-          dora start dataflow.yml --name ci-python-test
+          dora start dataflow.yml --name ci-python-test --detach
           sleep 10
           dora stop --name ci-python-test  --grace-duration 5s
           pip install "numpy<2.0.0" opencv-python
-          dora start ../examples/python-dataflow/dataflow_dynamic.yml --name ci-python-dynamic
+          dora start ../examples/python-dataflow/dataflow_dynamic.yml --name ci-python-dynamic --detach
           python ../examples/python-dataflow/plot_dynamic.py
           sleep 5
           dora stop --name ci-python-test  --grace-duration 5s
@@ -339,7 +339,7 @@ jobs:
           cmake -B build
           cmake --build build
           cmake --install build
-          dora start dataflow.yml --name ci-c-test
+          dora start dataflow.yml --name ci-c-test --detach
           sleep 10
           dora stop --name ci-c-test  --grace-duration 5s
           dora destroy
@@ -358,7 +358,7 @@ jobs:
           cmake -B build
           cmake --build build
           cmake --install build
-          dora start dataflow.yml --name ci-cxx-test
+          dora start dataflow.yml --name ci-cxx-test --detach
           sleep 10
           dora stop --name ci-cxx-test  --grace-duration 5s
           dora destroy