Update plot_pr_curves.py

Author: Ziyi6

examples/plot_pr_curves.py

@@ -11,6 +11,7 @@
 from sklearn.metrics import confusion_matrix
 
 os.system('git clone https://github.com/snakers4/silero-vad.git')  # Clone the silero-vad repo, using Silero V5
+os.system('git checkout bbf22a00640614309d60aba5467189b48c7c6ecc')
 sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), "./silero-vad/src")))
 from silero_vad.utils_vad import VADIterator, init_jit_model