Update Silero-VAD weights to v6.2 (#1390)

* Update Silero-VAD weights to v6.2

Overall slight quality improvement (no metrics update);
Higher stability on OOD / rare / strange / unique data;
Significant quality improvements on various known edge cases:

    Unusual voices
    Child voices
    Cartoon voices
    Muted voices
    Muted speech
    Lower quality phone calls

https://github.com/snakers4/silero-vad/releases/tag/v6.2

* Changes: tiny -> base in test_monotonic_timestamps()

tests/test_transcribe.py

@@ -245,7 +245,7 @@ def test_transcribe_signature():
 
 
 def test_monotonic_timestamps(physcisworks_path):
-    model = WhisperModel("tiny")
+    model = WhisperModel("base")
     pipeline = BatchedInferencePipeline(model=model)
 
     segments, info = model.transcribe(physcisworks_path, word_timestamps=True)