Replace `tabulario/iceberg-rest` with `apache/iceberg-rest-fixture`

[Fokko]

We now publish the apache/iceberg-rest-fixture from the Java repository. The tabulario is severely outdated.

[kevinjqliu]

couple of places where tabulario image is currently used
https://github.com/search?q=repo%3Aapache%2Ficeberg-rust%20tabulario&type=code

[flaneur2020]

can i take this issue?

[Fokko]

@flaneur2020 sure thing, much appreciated 🙌