Use UNKNOWN intermediate id in high limit case

The assumption was that this fails with high limit
as the label information builder needs to be sized.
However, the label information builder uses a growing
bit set, which is - as the name suggests - growing.

core/src/main/java/org/neo4j/gds/core/loading/construction/GraphFactory.java

@@ -119,11 +119,10 @@ static NodesBuilder nodesBuilder(
             // If the requested id map is high limit, we need to make sure that
             // internal data structures are sized accordingly. Using the highest
             // original id will potentially fail due to size limitations.
-            if (nodeCount.isPresent()) {
-                maxIntermediateId = nodeCount.get() - 1;
-            } else {
-                throw new IllegalArgumentException("Cannot use high limit id map without node count.");
-            }
+            // If the node count is not given, we fall back to an unknown max id,
+            // which is fine since label building relies on growing bitsets.
+            maxIntermediateId = nodeCount.map(nc -> nc - 1).orElse(NodesBuilder.UNKNOWN_MAX_ID);
+
             if (deduplicate) {
                 // We internally use HABS for deduplication, which is being initialized
                 // with max original id. This is fine for all id maps except high limit,