Add TF weights

Model converted by the [`transformers`' `pt_to_tf` CLI](https://github.com/huggingface/transformers/blob/main/src/transformers/commands/pt_to_tf.py). All converted model outputs and hidden layers were validated against its Pytorch counterpart.

Maximum crossload output difference=1.287e-04; Maximum crossload hidden layer difference=4.578e-05;
Maximum conversion output difference=1.287e-04; Maximum conversion hidden layer difference=4.578e-05;


CAUTION: The maximum admissible error was manually increased to 0.0002!

tf_model.h5

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+oid sha256:877957ccd128bf7a15912ce185673262923af6affd9bfea6e7c0713985c83f67
+size 22793944