update nemo requirements

Signed-off-by: Nithin Rao Koluguri <nithinraok>

Author: Nithin Rao Koluguri

requirements/requirements_nemo.txt

@@ -1,6 +1,6 @@
-git+https://github.com/NVIDIA/NeMo.git@208e0da28e2ada8da84d8f7ddff8623efe1ff01c#egg=nemo_toolkit[asr] # This commit hash is a recent version of main at the time of testing.
+git+https://github.com/NVIDIA/NeMo.git@r2.3.0#egg=nemo_toolkit[asr]
 tqdm
 soundfile
 librosa
 IPython # Workaround for https://github.com/NVIDIA/NeMo/pull/9890#discussion_r1701028427
-cuda-python>=12.4 # Used for fast TDT and RNN-T inference
+cuda-python>=12.4 # Used for fast TDT and RNN-T inference