Update TF doc test template

[amyeroberts]

What does this PR do?

The PR #21106 introduced failures in some doctests:

• src/transformers/models/deit/modeling_tf_deit.py::transformers.models.deit.modeling_tf_deit.TFDeiTForImageClassificationWithTeacher.call
• src/transformers/models/resnet/modeling_tf_resnet.py::transformers.models.resnet.modeling_tf_resnet.TFResNetModel.call
• src/transformers/models/segformer/modeling_tf_segformer.py::transformers.models.segformer.modeling_tf_segformer.TFSegformerForImageClassification.call
• src/transformers/models/vit/modeling_tf_vit.py::transformers.models.vit.modeling_tf_vit.TFViTModel.call

This was due to processor_class no longer being passed to add_code_sample_docstrings e.g. the changes to modeling_tf_deit.py.

Whilst processor_class could be removed for the PyTorch models doctests, {processor_class} hadn't been removed for the equivalent TensorFlow doctest templates. This updates the test templates to match the equivalent PyTorch ones and resolve failing tests.

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• This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
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• Did you write any new necessary tests?

[HuggingFaceDocBuilderDev]

The documentation is not available anymore as the PR was closed or merged.

[amyeroberts]

Closed as changes are a subset of changes introduced in #21225