Part of https://github.com/Qiskit/documentation/issues/1870. We'll set
up redirects in closed source from `qiskit-transpiler-service/*` to
`qiskit-ibm-transpiler/*`.
We don't yet generate `qiskit-ibm-transpiler` version 0.5 because that
is going to require a new set of more specific redirects, as the page
names will change from `qiskit_transpiler_service.Foo` to
`qiskit_ibm_transpiler.Foo`. That'll be done in a follow up after this
initial migration is complete.