Update hpu.txt (#1654)

Update SHA for extension to: [Security] Fix: remove dead code (#306)
(#310)

Author: afierka-intel

requirements/hpu.txt

@@ -7,7 +7,7 @@ ray
 triton==3.1.0
 setuptools>=77.0.3
 setuptools-scm>=8
-vllm-hpu-extension @ git+https://github.com/HabanaAI/vllm-hpu-extension.git@908bd80
+vllm-hpu-extension @ git+https://github.com/HabanaAI/vllm-hpu-extension.git@1e96318
 
 # Dependencies for HPU vllm docker image
 datasets