[Serve] Clean up service replicas when CONTROLLER_FAILED happens

[Michaelvll]

When the controller failed, it is likely that no controller job will be in charge of terminating the replicas, which will cause resource leakage.

We now automatically remove the replicas that were managed by the CONTROLLER_FAILED controller.

Tested (run the relevant ones):

• Code formatting: bash format.sh
• Any manual or new tests for this PR (please specify below)
• All smoke tests: pytest tests/test_smoke.py
• Relevant individual smoke tests: pytest tests/test_smoke.py::test_fill_in_the_name
• Backward compatibility tests: bash tests/backward_comaptibility_tests.sh