Support endpoint to update experiments

[bhufmann]

Right now it's only possible to create an experiment, delete and list of an experiment. The TSP supports a PUT command to update the experiment (e.g. name or list of traces).

This tracker is to support the endpoint to update the experiment. Add also a command-line option to trigger the execution.

tsp_python-client --update-experiment <uuid> --name <new-name> --uuids <list of trace uuids>

where at least of --name, --uuids is provided on the command-line or experiment is unchanged

see TSP: https://github.com/theia-ide/trace-server-protocol/blob/34d244cc35e652681b2f003d3bd69100da6541d6/API.yaml#L216

Note: eclipse-cdt-cloud/trace-server-protocol#69 is related and needs to be in take in consideration.

[bhufmann]

Way forward is defined in this ADR: eclipse-cdt-cloud/theia-trace-extension#688