Cherry-pick changelog update for version 0.3.1 to r0.3.0 (#538)

Signed-off-by: Pablo Garay <pagaray@nvidia.com>

Author: pablo-garay

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 * [NeMo Export-Deploy Release](https://github.com/NVIDIA-NeMo/Export-Deploy/releases)  
 
+## NVIDIA NeMo-Export-Deploy 0.3.1
+* Fix vLLM top_p parameter handling in HuggingFace Ray deployment (#524)
+* Pin peft dependency to <0.14.0 for compatibility (#524)
+
 ## NVIDIA NeMo-Export-Deploy 0.3.0
 * Update TensorRT-LLM export to use NeMo->HF->TensorRT-LLM export path
 * Add chat template support for VLM deployment.