fix: resolve IndexError when using spk model and the audio contains only 1 ...

Atomie CHEN

2024-03-25 ff83116369ba6afe56430cb0b9d977fbe7f4bced

 funasr/models/campplus/cluster_backend.py

@@ -118,7 +118,7 @@
        self.metric = metric

    def __call__(self, X):
        from umap.umap_ import UMAP
        import umap.umap_ as umap
        umap_X = umap.UMAP(
            n_neighbors=self.n_neighbors,
            min_dist=0.0,