update optimum for fixing diffusers (openvinotoolkit#114)

Author: eaidova

llm_bench/python/requirements.txt

@@ -7,7 +7,7 @@ torch
 transformers>=4.33.0
 diffusers>=0.22.0
 optimum>=1.14.0,<1.15.0
-git+https://github.com/eaidova/optimum-intel.git@e4b50720e910a0e7acda4425d4a92dc098bd5125
+git+https://github.com/eaidova/optimum-intel.git@a57c86a6e561be838cbefb0ac430008c05e9aaa9
 git+https://github.com/openvinotoolkit/nncf.git@6d17662fec917e1293189e2c3a2b94139a433f16
 packaging
 psutil