Reset thread name when moving to new endpoint

[twagoo]

We have log lines like

2024-06-24T18:42:43,279 ERROR [IDS Repository] Provider - Bad URL[https://clarin-pl.eu/oai/request?verb=Identify]?

note the mismatch between thread name (I assume that's what it is) and URL. This is probably reflecting the previous endpoint handled by the thread now attempting to connect to a new one. I assume that the thread name is set after a successful identify call. This is a bit confusing when looking at the logs (e.g. in OpenSearch) so better would be to reset the thread name to something neutral each time a new endpoint is queried.