fix: error during deserialization of "INVERTED" index type

# Conflicts:
#	rust/lancedb/src/index.rs

rust/lancedb/src/index.rs

@@ -119,6 +119,7 @@ pub enum IndexType {
     #[serde(alias = "LABEL_LIST")]
     LabelList,
     // FTS
+    #[serde(alias = "INVERTED")]
     FTS,
 }