Guard from possible type mismatch errors in metadata results

Author: FylmTM

ui/jetbrains/src/main/java/com/neueda/jetbrains/plugin/graphdb/jetbrains/component/datasource/metadata/Neo4jBoltCypherDataSourceMetadata.java

@@ -57,7 +57,7 @@ private void addDataSourceMetadata(String key, GraphQueryResult graphQueryResult
             Map<String, String> data = new HashMap<>();
 
             for (GraphQueryResultColumn column : columns) {
-                data.put(column.getName(), (String) row.getValue(column));
+                data.put(column.getName(), row.getValue(column).toString());
             }
 
             dataSourceMetadata.add(data);