Update OpenGDS to use latest stable Neo4j version

Author: vnickolov

gradle/neo4j.dependencies.toml

@@ -1,6 +1,6 @@
 [versions]
 java-driver = "5.28.2"
-neo4j = "2025.08.0-SNAPSHOT"
+neo4j = "2025.08.0"
 
 [libraries]
 annotations = { module = "org.neo4j:annotations", version.ref = "neo4j" }