feat: update go-gpt2 (#359)

Signed-off-by: mudler <mudler@mocaccino.org>

tests/models_fixtures/embeddings.yaml

@@ -1,6 +1,5 @@
 name: text-embedding-ada-002
 parameters:
   model: bert
-threads: 14
 backend: bert-embeddings
 embeddings: true

tests/models_fixtures/rwkv.yaml

@@ -6,7 +6,6 @@ parameters:
   max_tokens: 100
   top_p: 0.8
 context_size: 1024
-threads: 14
 backend: "rwkv"
 cutwords:
 - "Bob:.*"