Triton-server deprecated Tensorflow in version 25.03

[andsild]

https://docs.nvidia.com/deeplearning/triton-inference-server/release-notes/rel-25-03.html#rel-25-03

The Tensorflow Backend has been deprecated starting in 25.03. The last release of Triton Inference Server with the Tensorflow Backend is 25.02. Users wishing to continue using the Tensorflow backend in 25.03 and later can build the Tensorflow Backend from the source

We should either find a way to package tensorflow backends or only continue with a PyTorch/TRT/ONNX backend.

Sidenote, Tensorflow backend is also used in most of this repositories' tests