update voyage-3-m-exp in model_meta.yaml

model_meta.yaml

@@ -1666,6 +1666,15 @@ model_meta:
     is_proprietary: true
     is_sentence_transformers_compatible: false
     uses_instruct: false
+  voyageai__voyage-3-m-exp:
+    link: https://docs.voyageai.com/embeddings/
+    seq_len: 32000
+    size: 6918
+    dim: 2048
+    is_external: true
+    is_proprietary: true
+    is_sentence_transformers_compatible: false
+    uses_instruct: false
   FacebookAI__xlm-roberta-base:
     link: https://huggingface.co/FacebookAI/xlm-roberta-base
     seq_len: 514