Fix small inconsistency in output dimension of "_get_t5_prompt_embeds" function in sd3 pipeline (#12531)
* Fix small inconsistency in output dimension of t5 embeds when text_encoder_3 is None
* first commit
---------
Co-authored-by: Alireza Farashah <alireza.farashah@cn-g017.server.mila.quebec>
Co-authored-by: Alireza Farashah <alireza.farashah@login-2.server.mila.quebec>