Update checkpoint for transformers>=4.29

Following the merge of [a PR](https://github.com/huggingface/transformers/pull/24310) in `transformers` it appeared that this model was not properly converted. This PR will fix the inference and was tested using the following script:
```python
>>> from transformers import MarianModel, MarianMTModel
>>> tokenizer = AutoTokenizer.from_pretrained('Helsinki-NLP/opus-mt-tc-big-en-ar')
>>> inputs = tokenizer("Hey! Let's learn together", return_tensors="pt", padding=True)
>>> model = MarianMTModel.from_pretrained('Helsinki-NLP/opus-mt-tc-big-en-ar')
>>> print(tokenizer.batch_decode(model.generate(**inputs)))
['<pad> لنتعلّم معاً</s>']
```

.gitattributes

@@ -27,3 +27,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.zstandard filter=lfs diff=lfs merge=lfs -text
 *tfevents* filter=lfs diff=lfs merge=lfs -text
 *.spm filter=lfs diff=lfs merge=lfs -text
+model.safetensors filter=lfs diff=lfs merge=lfs -text

config.json

@@ -1,5 +1,4 @@
 {
-  "_name_or_path": "/tmp/Helsinki-NLP/opus-mt-tc-big-en-ar",
   "activation_dropout": 0.0,
   "activation_function": "relu",
   "architectures": [
@@ -40,7 +39,7 @@
   "share_encoder_decoder_embeddings": true,
   "static_position_embeddings": true,
   "torch_dtype": "float16",
-  "transformers_version": "4.22.0.dev0",
+  "transformers_version": "4.34.0.dev0",
   "use_cache": true,
   "vocab_size": 61247
 }

generation_config.json

@@ -12,5 +12,5 @@
   "num_beams": 4,
   "pad_token_id": 61246,
   "renormalize_logits": true,
-  "transformers_version": "4.32.0.dev0"
+  "transformers_version": "4.34.0.dev0"
 }

model.safetensors

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9c4fb5fba22fc64947213c1adc0c9ac7f018cda71a466eea08231054eecf9851
+size 478300630

pytorch_model.bin

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:ac090df098d2b66694744ff7d4e1b24288a603aa340730d9b454687053661488
-size 603796611
+oid sha256:b6fc86f54d0ae5cea6773dfe7dd4474e2eddf331a4e21fadd02b6b76d4ca1fca
+size 478357637