Load relationships from multiple tables

Author: knutwalker

annotations/src/main/java/org/neo4j/gds/core/CypherMapWrapper.java

@@ -34,7 +34,7 @@
  */
 public final class CypherMapWrapper implements CypherMapAccess {
 
-    public static CypherMapWrapper create(@Nullable Map<String, Object> config) {
+    public static CypherMapWrapper create(@Nullable Map<String, ? extends Object> config) {
         if (config == null) {
             return empty();
         }