Add support for 'overwrite' option in register_table

[ebyhr]

Rationale for this change

• Relates to OpenAPI: Add overwrite option when registering an iceberg table iceberg#12239

Are these changes tested?

Are there any user-facing changes?

This PR adds overwrite parameter to catalog.register_table method.

[gabeiglio]

Looks good to me, one small nit would be to add some tests in integration tests here if the iceberg rest image supports the overwriting flag

[ebyhr]

The current test target (1.10.0) supports the option in OpenAPI yml, but the catalog doesn't support it. We can add an integration test once 1.11.0 (apache/iceberg#15525) is released.